diff --git a/equation.js b/equation.js
index f8ac1c2..cb73115 100644
--- a/equation.js
+++ b/equation.js
@@ -1,1726 +1,1726 @@
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Equation = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
-  value: true
-});
-/*
- * Constats
- * Keys must be UPPERCASE
- * Values Can be a constant value or a function returning a value
- *        this function doesn't take any arguments (use case: random constats)
- */
-exports['default'] = {
-  PI: Math.PI,
-  E: Math.E,
-  RAND: Math.random
-};
-module.exports = exports['default'];
-},{}],2:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
-  value: true
-});
-var parseFormat = function parseFormat(a) {
-  var split = a.split('1');
-  return {
-    left: split[0].length,
-    right: split[1].length
-  };
-};
-
-exports.parseFormat = parseFormat;
-var isNumber = function isNumber(a) {
-  return !isNaN(+a);
-};
-
-exports.isNumber = isNumber;
-var parseNumbers = (function (_parseNumbers) {
-  function parseNumbers(_x) {
-    return _parseNumbers.apply(this, arguments);
-  }
-
-  parseNumbers.toString = function () {
-    return _parseNumbers.toString();
-  };
-
-  return parseNumbers;
-})(function (a) {
-  return a.map(function (b) {
-    if (isNumber(b)) {
-      return parseFloat(b);
-    }
-    if (Array.isArray(b)) {
-      return parseNumbers(b);
-    }
-    return b;
-  });
-});
-
-exports.parseNumbers = parseNumbers;
-var dive = function dive(arr, n) {
-  var result = arr;
-  for (var i = 0; i < n; ++i) {
-    result = result[result.length - 1];
-  }
-  return result;
-};
-
-exports.dive = dive;
-var deep = (function (_deep) {
-  function deep(_x2, _x3) {
-    return _deep.apply(this, arguments);
-  }
-
-  deep.toString = function () {
-    return _deep.toString();
-  };
-
-  return deep;
-})(function (arr, n) {
-  var index = arguments[2] === undefined ? 0 : arguments[2];
-
-  if (n < 2) {
-    return { arr: arr, index: index };
-  }
-
-  var d = arr.reduce(function (a, b, i) {
-    if (Array.isArray(b)) {
-      var _deep2 = deep(b, n - 1, i);
-
-      var _arr = _deep2.arr;
-      var x = _deep2.index;
-      var merged = a.concat(_arr);
-
-      index = x;
-      return merged;
-    }
-    return a;
-  }, []);
-
-  return { arr: d, index: index };
-});
-
-exports.deep = deep;
-var diveTo = (function (_diveTo) {
-  function diveTo(_x4, _x5, _x6) {
-    return _diveTo.apply(this, arguments);
-  }
-
-  diveTo.toString = function () {
-    return _diveTo.toString();
-  };
-
-  return diveTo;
-})(function (arr, indexes, replace) {
-  var answer = [];
-  if (indexes.some(Array.isArray)) {
-    var _iteratorNormalCompletion = true;
-    var _didIteratorError = false;
-    var _iteratorError = undefined;
-
-    try {
-      for (var _iterator = indexes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-        var index = _step.value;
-
-        answer.push(diveTo(arr, index, replace));
-      }
-    } catch (err) {
-      _didIteratorError = true;
-      _iteratorError = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion && _iterator['return']) {
-          _iterator['return']();
-        }
-      } finally {
-        if (_didIteratorError) {
-          throw _iteratorError;
-        }
-      }
-    }
-  } else {
-    arr[indexes[0]] = replace;
-    return replace;
-  }
-
-  return answer;
-});
-
-exports.diveTo = diveTo;
-var flatten = (function (_flatten) {
-  function flatten(_x7) {
-    return _flatten.apply(this, arguments);
-  }
-
-  flatten.toString = function () {
-    return _flatten.toString();
-  };
-
-  return flatten;
-})(function (arr) {
-  if (!Array.isArray(arr) || !arr.some(Array.isArray)) {
-    return arr;
-  }
-
-  return arr.reduce(function (a, b) {
-    return a.concat(flatten(b));
-  }, []);
-});
-
-exports.flatten = flatten;
-var removeSymbols = function removeSymbols(string) {
-  return string.toString().replace(/\W/g, '');
-};
-exports.removeSymbols = removeSymbols;
-},{}],3:[function(require,module,exports){
-'use strict';
-
-var _interopRequireWildcard = function (obj) { return obj && obj.__esModule ? obj : { 'default': obj }; };
-
-var _slicedToArray = function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } };
-
-var _toConsumableArray = function (arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } };
-
-Object.defineProperty(exports, '__esModule', {
-  value: true
-});
-
-require('babel/polyfill');
-
-var _ReadStream = require('./readstream');
-
-var _ReadStream2 = _interopRequireWildcard(_ReadStream);
-
-var _operators = require('./operators');
-
-var _operators2 = _interopRequireWildcard(_operators);
-
-var _constants = require('./constants');
-
-var _constants2 = _interopRequireWildcard(_constants);
-
-var _import = require('./helpers');
-
-var _ = _interopRequireWildcard(_import);
-
-var Equation = {
-  /**
-    * Solves the given math expression, following these steps:
-    * 1. Replace constants in the expression
-    * 2. parse the expression, separating numbers and operators into
-    *    an array
-    * 3. Sort the stack by operators' precedence, it actually groups the
-    *    operator with it's arguments n-level deep
-    * 4. Apply parseFloat to numbers of the array
-    * 5. Solve groups recursively
-    *
-    * @param {String} expression
-    *        The math expression to solve
-    * @return {Number}
-    *         Result of the expression
-    */
-  solve: function solve(expression) {
-    // replace constants with their values
-    expression = replaceConstants(expression);
-
-    var stack = parseExpression(expression);
-    stack = sortStack(stack);
-    stack = _.parseNumbers(stack);
-    stack = solveStack(stack);
-
-    return stack;
-  },
-
-  /**
-    * Creates an equation function which replaces variables
-    * in the given expression with the values specified in order,
-    * and solves the new expression
-    *
-    * Example:
-    *   equation('x+y+z')(2, 5, 6) => solve('2+5+6')
-    *
-    * @param {String} expression
-    *        The expression to create an equation for (containing variables)
-    * @return {Function}
-    *         The function which replaces variables with values in order
-    *         and solves the expression
-    */
-  equation: function equation(expression) {
-    var stack = parseExpression(expression);
-    var variables = [];
-
-    stack.forEach(function varCheck(a) {
-      if (Array.isArray(a)) {
-        return a.forEach(varCheck);
-      }
-      if (isVariable(a)) {
-        // grouped variables like (y) need to have their parantheses removed
-        variables.push(_.removeSymbols(a));
-      }
-    });
-
-    return function () {
-      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
-        args[_key] = arguments[_key];
-      }
-
-      stack.forEach(function varCheck(a, i, arr) {
-        if (Array.isArray(a)) {
-          return a.forEach(varCheck);
-        }
-
-        var index = variables.indexOf(a);
-        if (index > -1) {
-          // grouped variables like (y) need to have their parantheses removed
-          arr[i] = args[index];
-        }
-      });
-
-      stack = sortStack(stack);
-      stack = _.parseNumbers(stack);
-      stack = solveStack(stack);
-
-      return stack;
-    };
-  },
-
-  registerOperator: function registerOperator(key, options) {
-    _operators2['default'][key] = options;
-  },
-
-  registerConstant: function registerConstant(key, options) {
-    _constants2['default'][key] = options;
-  }
-};
-
-var solveStack = (function (_solveStack) {
-  function solveStack(_x) {
-    return _solveStack.apply(this, arguments);
-  }
-
-  solveStack.toString = function () {
-    return _solveStack.toString();
-  };
-
-  return solveStack;
-})(function (stack) {
-  // if an operator takes an expression argument, we should not dive into it
-  // and solve the expression inside
-  var hasExpressionArgument = stack.some(function (a) {
-    return _operators2['default'][a] && _operators2['default'][a].hasExpression;
-  });
-
-  if (!hasExpressionArgument && stack.some(Array.isArray)) {
-    stack = stack.map(function (group) {
-      if (!Array.isArray(group)) {
-        return group;
-      }
-      return solveStack(group);
-    });
-
-    return solveStack(stack);
-  } else {
-    return evaluate(stack);
-  }
-});
-
-var PRECEDENCES = Object.keys(_operators2['default']).map(function (key) {
-  return _operators2['default'][key].precedence;
-});
-
-var MAX_PRECEDENCE = Math.max.apply(Math, _toConsumableArray(PRECEDENCES));
-var MIN_PRECEDENCE = Math.min.apply(Math, _toConsumableArray(PRECEDENCES));
-
-/**
-  * Parses the given expression into an array of separated
-  * numbers and operators/functions.
-  * The result is passed to parseGroups
-  *
-  * @param {String} expression
-  *        The expression to parse
-  * @return {Array}
-  *         The parsed array
-  */
-var parseExpression = function parseExpression(expression) {
-  // function arguments can be separated using comma,
-  // but we parse as groups, so this is the solution to getting comma to work
-  // sigma(0, 4, 2@) becomes sigma(0)(4)(2@) so every argument is parsed
-  // separately
-  expression = expression.replace(/,/g, ')(');
-
-  var stream = new _ReadStream2['default'](expression),
-      stack = [],
-      record = '',
-      cur = undefined,
-      past = undefined;
-
-  // Create an array of separated numbers & operators
-  while (stream.next()) {
-    cur = stream.current();
-    past = stack.length - 1;
-
-    if (cur === ' ') {
-      continue;
-    }
-
-    // it's probably a function with a length more than one
-    if (!_.isNumber(cur) && !_operators2['default'][cur] && cur !== '.' && cur !== '(' && cur !== ')') {
-
-      record += cur;
-    } else if (record.length) {
-      var beforeRecord = past - (record.length - 1);
-      if (isVariable(record) && _.isNumber(stack[beforeRecord])) {
-        stack.push('*');
-      }
-      stack.push(record, cur);
-      record = '';
-
-      // numbers and decimals
-    } else if (_.isNumber(stack[past]) && (_.isNumber(cur) || cur === '.')) {
-
-      stack[past] += cur;
-
-      // negation sign
-    } else if (stack[past] === '-') {
-      var beforeSign = stack[past - 1];
-
-      // 2 / -5 is OK, pass
-      if (_operators2['default'][beforeSign]) {
-        stack[past] += cur;
-
-        // (2+1) - 5 becomes (2+1) + -5
-      } else if (beforeSign === ')') {
-        stack[past] = '+';
-        stack.push('-' + cur);
-
-        // 2 - 5 is also OK, pass
-      } else if (_.isNumber(beforeSign) || isVariable(beforeSign)) {
-        stack.push(cur);
-      } else {
-        stack[past] += cur;
-      }
-    } else {
-      stack.push(cur);
-    }
-  }
-  if (record.length) {
-    var beforeRecord = past - (record.length - 1);
-    if (isVariable(record) && _.isNumber(stack[beforeRecord])) {
-      stack.push('*');
-    }
-    stack.push(record);
-  }
-
-  return parseGroups(stack);
-};
-
-/**
-  * Takes the parsed array from parseExpression and
-  * groups up expressions in parantheses in deep arrays
-  *
-  * Example: 2+(5+4) becomes [2, [5, '+', 4]]
-  *
-  * @param {Array} stack
-  *        The parsed expression
-  * @return {Array}
-  *         Grouped up expression
-  */
-var parseGroups = function parseGroups(stack) {
-  // Parantheses become inner arrays which will then be processed first
-  var depth = 0;
-  return stack.reduce(function (a, b) {
-    if (b.indexOf('(') > -1) {
-      if (b.length > 1) {
-        _.dive(a, depth).push(b.replace('(', ''), []);
-      } else {
-        _.dive(a, depth).push([]);
-      }
-      depth++;
-    } else if (b === ')') {
-      depth--;
-    } else {
-      _.dive(a, depth).push(b);
-    }
-    return a;
-  }, []);
-};
-
-/**
-  * Gives information about an operator's format
-  * including number of left and right arguments
-  *
-  * @param {String/Object} operator
-  *        The operator object or operator name (e.g. +, -)
-  * @return {Object}
-  *         An object including the count of left and right arguments
-  */
-var formatInfo = function formatInfo(operator) {
-  var op = typeof operator === 'string' ? _operators2['default'][operator] : operator;
-
-  if (!op) {
-    return null;
-  }
-
-  var format = op.format.split('1'),
-      left = format[0].length,
-      right = format[1].length;
-
-  return { left: left, right: right };
-};
-
-/**
-  * Groups up operators and their arguments based on their precedence
-  * in deep arrays, the higher the priority, the deeper the group.
-  * This simplifies the evaluating process, the only thing to do is to
-  * evaluate from bottom up, evaluating deep groups first
-  *
-  * @param {Array} stack
-  *        The parsed and grouped expression
-  * @return {Array}
-  *         Grouped expression based on precedences
-  */
-var sortStack = (function (_sortStack) {
-  function sortStack(_x2) {
-    return _sortStack.apply(this, arguments);
-  }
-
-  sortStack.toString = function () {
-    return _sortStack.toString();
-  };
-
-  return sortStack;
-})(function (stack) {
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = stack.entries()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var _step$value = _slicedToArray(_step.value, 2);
-
-      var index = _step$value[0];
-      var item = _step$value[1];
-
-      if (Array.isArray(item)) {
-        stack.splice(index, 1, sortStack(item));
-      }
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator['return']) {
-        _iterator['return']();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  for (var i = MIN_PRECEDENCE; i <= MAX_PRECEDENCE; i++) {
-    for (var index = 0; index < stack.length; ++index) {
-      var item = stack[index];
-      var op = _operators2['default'][item];
-
-      if (!op || op.precedence !== i) {
-        continue;
-      }
-
-      var _formatInfo = formatInfo(op);
-
-      var left = _formatInfo.left;
-      var right = _formatInfo.right;
-
-      var group = stack.splice(index - left, left + right + 1, []);
-      stack[index - left] = group;
-
-      for (var y = 0; y < i; y++) {
-        group = [group];
-      }
-
-      index -= right;
-    }
-  }
-
-  return stack;
-});
-
-/**
-  * Evaluates the given math expression.
-  * The expression is an array with an operator and arguments
-  *
-  * Example: evaluate([2, '+', 4]) == 6
-  *
-  * @param {Array} stack
-  *        A single math expression
-  * @return {Number}
-  *         Result of the expression
-  */
-var evaluate = function evaluate(stack) {
-  var _operators$op;
-
-  var op = findOperator(stack);
-  if (!op) {
-    return stack[0];
-  }
-
-  var _formatInfo2 = formatInfo(op);
-
-  var left = _formatInfo2.left;
-
-  var leftArguments = stack.slice(0, left),
-      rightArguments = stack.slice(left + 1);
-
-  return fixFloat((_operators$op = _operators2['default'][op]).fn.apply(_operators$op, _toConsumableArray(leftArguments).concat(_toConsumableArray(rightArguments))));
-};
-
-/**
-  * Finds the first operator in an array and returns it
-  *
-  * @param {Array} arr
-  *        The array to look for an operator in
-  * @return {Object}
-  *         The operator object or null if no operator is found
-  */
-var findOperator = function findOperator(arr) {
-  var _iteratorNormalCompletion2 = true;
-  var _didIteratorError2 = false;
-  var _iteratorError2 = undefined;
-
-  try {
-    for (var _iterator2 = arr[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-      var o = _step2.value;
-
-      if (typeof o === 'string') {
-        return o;
-      }
-    }
-  } catch (err) {
-    _didIteratorError2 = true;
-    _iteratorError2 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion2 && _iterator2['return']) {
-        _iterator2['return']();
-      }
-    } finally {
-      if (_didIteratorError2) {
-        throw _iteratorError2;
-      }
-    }
-  }
-
-  return null;
-};
-
-/**
-  * Replaces constants in a string with their values
-  *
-  * @param {String} expression
-  *        The expression to replace constants in
-  * @return {String}
-  *         The expression with constants replaced
-  */
-var replaceConstants = function replaceConstants(expression) {
-  return expression.replace(/[A-Z]*/g, function (a) {
-    var c = _constants2['default'][a];
-    if (!c) {
-      return a;
-    }
-    return typeof c === 'function' ? c() : c;
-  });
-};
-
-/**
-  * Fixes JavaScript's floating point precisions - Issue #5
-  *
-  * @param {Number} number
-  *        The number to fix
-  * @return {Number}
-  *         Fixed number
-  */
-var fixFloat = function fixFloat(number) {
-  return +number.toFixed(15);
-};
-
-/**
-  * Recognizes variables such as x, y, z
-  * @param {String} a
-  *        The string to check for
-  * @return {Boolean}
-  *         true if variable, else false
-  */
-
-var SPECIALS = '()[]{}'.split('');
-var isVariable = function isVariable(a) {
-  return typeof a === 'string' && !_.isNumber(a) && !_operators2['default'][a] && a === a.toLowerCase() && SPECIALS.indexOf(a) === -1;
-};
-
-exports.isVariable = isVariable;
-exports['default'] = Equation;
-},{"./constants":1,"./helpers":2,"./operators":4,"./readstream":5,"babel/polyfill":189}],4:[function(require,module,exports){
-'use strict';
-
-var _interopRequireWildcard = function (obj) { return obj && obj.__esModule ? obj : { 'default': obj }; };
-
-Object.defineProperty(exports, '__esModule', {
-  value: true
-});
-
-var _Equation = require('./index');
-
-var _Equation2 = _interopRequireWildcard(_Equation);
-
-/*
- * Operators and Functions
- * fn: function used to evaluate value
- * format: the format using which arguments are parsed:
- *         0 indicates an argument and 1 indicates the operator
- *         e.g: factorial is 01, add is 010, like 2!, 2+2
- * precedence: determines which operators should be evaluated first
- *             the lower the value, the higher the precedence
- * hasExpression: determines if any of the operator arguments are an expression
- *                This way, arguments will not be solved by equation and instead
- *                you have to call solve on each argument yourself.
- *                You get the arguments as parsed arrays sigma(0, 5, 2@) becomes
- *                sigma(0, 5, [2, '*', '@']). See sigma operator for reference
- */
-exports['default'] = {
-  '^': {
-    fn: function fn(a, b) {
-      return Math.pow(a, b);
-    },
-    format: '010',
-    precedence: 0
-  },
-  '*': {
-    fn: function fn(a, b) {
-      return a * b;
-    },
-    format: '010',
-    precedence: 1
-  },
-  '/': {
-    fn: function fn(a, b) {
-      return a / b;
-    },
-    format: '010',
-    precedence: 1
-  },
-  '%': {
-    fn: function fn(a, b) {
-      return a % b;
-    },
-    format: '010',
-    precedence: 1
-  },
-  '\\': {
-    fn: function fn(a, b) {
-      return Math.floor(a / b);
-    },
-    format: '010',
-    precedence: 1
-  },
-  '+': {
-    fn: function fn(a, b) {
-      return a + b;
-    },
-    format: '010',
-    precedence: 2
-  },
-  '-': {
-    fn: function fn(a, b) {
-      return a - b;
-    },
-    format: '010',
-    precedence: 2
-  },
-  '!': {
-    fn: function fn(a) {
-      var sum = 1;
-      for (var i = 0; i < a; ++i) {
-        sum *= i;
-      }
-      return sum;
-    },
-    format: '01',
-    precedence: 2
-  },
-  log: {
-    fn: Math.log,
-    format: '10',
-    precedence: -1
-  },
-  ln: {
-    fn: Math.log,
-    format: '10',
-    precedence: -1
-  },
-  lg: {
-    fn: function fn(a) {
-      return Math.log(a) / Math.log(2);
-    },
-    format: '10',
-    precedence: -1
-  },
-  sin: {
-    fn: Math.sin,
-    format: '10',
-    precedence: -1
-  },
-  cos: {
-    fn: Math.cos,
-    format: '10',
-    precedence: -1
-  },
-  tan: {
-    fn: Math.tan,
-    format: '10',
-    precedence: -1
-  },
-  cot: {
-    fn: Math.cot,
-    format: '10',
-    precedence: -1
-  },
-  round: {
-    fn: Math.round,
-    format: '10',
-    precedence: -1
-  },
-  floor: {
-    fn: Math.floor,
-    format: '10',
-    precedence: -1
-  },
-  sigma: {
-    fn: function fn(from, to, expression) {
-      var expr = expression.join('').replace(/,/g, '');
-      var regex = new RegExp(ITERATOR_SIGN, 'g');
-
-      var sum = 0;
-      for (var i = from; i <= to; i++) {
-        sum += _Equation2['default'].solve(expr.replace(regex, i));
-      }
-      return sum;
-    },
-    format: '1000',
-    hasExpression: true,
-    precedence: -1
-  }
-};
-
-var ITERATOR_SIGN = '@';
-module.exports = exports['default'];
-},{"./index":3}],5:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
-  value: true
-});
-
-exports['default'] = function (string) {
-  var i = 0,
-      buffer = [];
-  return {
-    next: function next() {
-      buffer.push(string[i]);
-
-      if (i >= string.length) {
-        return null;
-      }
-      return string[i++];
-    },
-    current: function current() {
-      return string[i - 1];
-    },
-    index: function index() {
-      return i - 1;
-    },
-    to: function to(n) {
-      var temp = '';
-      var dest = i + n;
-      for (i = i; i < dest; ++i) {
-        temp += [string[i]];
-      }
-      return temp;
-    },
-    drain: function drain() {
-      return buffer.splice(0, buffer.length);
-    },
-    replace: (function (_replace) {
-      function replace(_x, _x2, _x3) {
-        return _replace.apply(this, arguments);
-      }
-
-      replace.toString = function () {
-        return _replace.toString();
-      };
-
-      return replace;
-    })(function (start, end, replace) {
-      var temp = string.split('');
-      temp.splice(start, end, replace);
-      string = temp.join('');
-
-      i = i - (end - start);
-    }),
-    go: function go(n) {
-      i += n;
-    },
-    all: function all() {
-      return string;
-    }
-  };
-};
-
-module.exports = exports['default'];
-},{}],6:[function(require,module,exports){
-(function (global){
-"use strict";
-
-require("core-js/shim");
-
-require("regenerator/runtime");
-
-if (global._babelPolyfill) {
-  throw new Error("only one instance of babel/polyfill is allowed");
-}
-global._babelPolyfill = true;
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"core-js/shim":186,"regenerator/runtime":187}],7:[function(require,module,exports){
-module.exports = function(it){
-  if(typeof it != 'function')throw TypeError(it + ' is not a function!');
-  return it;
-};
-},{}],8:[function(require,module,exports){
-var isObject = require('./$.is-object');
-module.exports = function(it){
-  if(!isObject(it))throw TypeError(it + ' is not an object!');
-  return it;
-};
-},{"./$.is-object":38}],9:[function(require,module,exports){
-// false -> Array#indexOf
-// true  -> Array#includes
-var toIObject = require('./$.to-iobject')
-  , toLength  = require('./$.to-length')
-  , toIndex   = require('./$.to-index');
-module.exports = function(IS_INCLUDES){
-  return function($this, el, fromIndex){
-    var O      = toIObject($this)
-      , length = toLength(O.length)
-      , index  = toIndex(fromIndex, length)
-      , value;
-    // Array#includes uses SameValueZero equality algorithm
-    if(IS_INCLUDES && el != el)while(length > index){
-      value = O[index++];
-      if(value != value)return true;
-    // Array#toIndex ignores holes, Array#includes - not
-    } else for(;length > index; index++)if(IS_INCLUDES || index in O){
-      if(O[index] === el)return IS_INCLUDES || index;
-    } return !IS_INCLUDES && -1;
-  };
-};
-},{"./$.to-index":74,"./$.to-iobject":76,"./$.to-length":77}],10:[function(require,module,exports){
-// 0 -> Array#forEach
-// 1 -> Array#map
-// 2 -> Array#filter
-// 3 -> Array#some
-// 4 -> Array#every
-// 5 -> Array#find
-// 6 -> Array#findIndex
-var ctx      = require('./$.ctx')
-  , IObject  = require('./$.iobject')
-  , toObject = require('./$.to-object')
-  , toLength = require('./$.to-length');
-module.exports = function(TYPE){
-  var IS_MAP        = TYPE == 1
-    , IS_FILTER     = TYPE == 2
-    , IS_SOME       = TYPE == 3
-    , IS_EVERY      = TYPE == 4
-    , IS_FIND_INDEX = TYPE == 6
-    , NO_HOLES      = TYPE == 5 || IS_FIND_INDEX;
-  return function($this, callbackfn, that){
-    var O      = toObject($this)
-      , self   = IObject(O)
-      , f      = ctx(callbackfn, that, 3)
-      , length = toLength(self.length)
-      , index  = 0
-      , result = IS_MAP ? Array(length) : IS_FILTER ? [] : undefined
-      , val, res;
-    for(;length > index; index++)if(NO_HOLES || index in self){
-      val = self[index];
-      res = f(val, index, O);
-      if(TYPE){
-        if(IS_MAP)result[index] = res;            // map
-        else if(res)switch(TYPE){
-          case 3: return true;                    // some
-          case 5: return val;                     // find
-          case 6: return index;                   // findIndex
-          case 2: result.push(val);               // filter
-        } else if(IS_EVERY)return false;          // every
-      }
-    }
-    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
-  };
-};
-},{"./$.ctx":19,"./$.iobject":35,"./$.to-length":77,"./$.to-object":78}],11:[function(require,module,exports){
-// 19.1.2.1 Object.assign(target, source, ...)
-var toObject = require('./$.to-object')
-  , IObject  = require('./$.iobject')
-  , enumKeys = require('./$.enum-keys');
-/* eslint-disable no-unused-vars */
-module.exports = Object.assign || function assign(target, source){
-/* eslint-enable no-unused-vars */
-  var T = toObject(target)
-    , l = arguments.length
-    , i = 1;
-  while(l > i){
-    var S      = IObject(arguments[i++])
-      , keys   = enumKeys(S)
-      , length = keys.length
-      , j      = 0
-      , key;
-    while(length > j)T[key = keys[j++]] = S[key];
-  }
-  return T;
-};
-},{"./$.enum-keys":23,"./$.iobject":35,"./$.to-object":78}],12:[function(require,module,exports){
-// getting tag from 19.1.3.6 Object.prototype.toString()
-var cof = require('./$.cof')
-  , TAG = require('./$.wks')('toStringTag')
-  // ES3 wrong here
-  , ARG = cof(function(){ return arguments; }()) == 'Arguments';
-
-module.exports = function(it){
-  var O, T, B;
-  return it === undefined ? 'Undefined' : it === null ? 'Null'
-    // @@toStringTag case
-    : typeof (T = (O = Object(it))[TAG]) == 'string' ? T
-    // builtinTag case
-    : ARG ? cof(O)
-    // ES3 arguments fallback
-    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
-};
-},{"./$.cof":13,"./$.wks":81}],13:[function(require,module,exports){
-var toString = {}.toString;
-
-module.exports = function(it){
-  return toString.call(it).slice(8, -1);
-};
-},{}],14:[function(require,module,exports){
-'use strict';
-var $            = require('./$')
-  , hide         = require('./$.hide')
-  , ctx          = require('./$.ctx')
-  , species      = require('./$.species')
-  , strictNew    = require('./$.strict-new')
-  , defined      = require('./$.defined')
-  , forOf        = require('./$.for-of')
-  , step         = require('./$.iter-step')
-  , ID           = require('./$.uid')('id')
-  , $has         = require('./$.has')
-  , isObject     = require('./$.is-object')
-  , isExtensible = Object.isExtensible || isObject
-  , SUPPORT_DESC = require('./$.support-desc')
-  , SIZE         = SUPPORT_DESC ? '_s' : 'size'
-  , id           = 0;
-
-var fastKey = function(it, create){
-  // return primitive with prefix
-  if(!isObject(it))return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
-  if(!$has(it, ID)){
-    // can't set id to frozen object
-    if(!isExtensible(it))return 'F';
-    // not necessary to add id
-    if(!create)return 'E';
-    // add missing object id
-    hide(it, ID, ++id);
-  // return object id with prefix
-  } return 'O' + it[ID];
-};
-
-var getEntry = function(that, key){
-  // fast case
-  var index = fastKey(key), entry;
-  if(index !== 'F')return that._i[index];
-  // frozen object case
-  for(entry = that._f; entry; entry = entry.n){
-    if(entry.k == key)return entry;
-  }
-};
-
-module.exports = {
-  getConstructor: function(wrapper, NAME, IS_MAP, ADDER){
-    var C = wrapper(function(that, iterable){
-      strictNew(that, C, NAME);
-      that._i = $.create(null); // index
-      that._f = undefined;      // first entry
-      that._l = undefined;      // last entry
-      that[SIZE] = 0;           // size
-      if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
-    });
-    require('./$.mix')(C.prototype, {
-      // 23.1.3.1 Map.prototype.clear()
-      // 23.2.3.2 Set.prototype.clear()
-      clear: function clear(){
-        for(var that = this, data = that._i, entry = that._f; entry; entry = entry.n){
-          entry.r = true;
-          if(entry.p)entry.p = entry.p.n = undefined;
-          delete data[entry.i];
-        }
-        that._f = that._l = undefined;
-        that[SIZE] = 0;
-      },
-      // 23.1.3.3 Map.prototype.delete(key)
-      // 23.2.3.4 Set.prototype.delete(value)
-      'delete': function(key){
-        var that  = this
-          , entry = getEntry(that, key);
-        if(entry){
-          var next = entry.n
-            , prev = entry.p;
-          delete that._i[entry.i];
-          entry.r = true;
-          if(prev)prev.n = next;
-          if(next)next.p = prev;
-          if(that._f == entry)that._f = next;
-          if(that._l == entry)that._l = prev;
-          that[SIZE]--;
-        } return !!entry;
-      },
-      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
-      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
-      forEach: function forEach(callbackfn /*, that = undefined */){
-        var f = ctx(callbackfn, arguments[1], 3)
-          , entry;
-        while(entry = entry ? entry.n : this._f){
-          f(entry.v, entry.k, this);
-          // revert to the last existing entry
-          while(entry && entry.r)entry = entry.p;
-        }
-      },
-      // 23.1.3.7 Map.prototype.has(key)
-      // 23.2.3.7 Set.prototype.has(value)
-      has: function has(key){
-        return !!getEntry(this, key);
-      }
-    });
-    if(SUPPORT_DESC)$.setDesc(C.prototype, 'size', {
-      get: function(){
-        return defined(this[SIZE]);
-      }
-    });
-    return C;
-  },
-  def: function(that, key, value){
-    var entry = getEntry(that, key)
-      , prev, index;
-    // change existing entry
-    if(entry){
-      entry.v = value;
-    // create new entry
-    } else {
-      that._l = entry = {
-        i: index = fastKey(key, true), // <- index
-        k: key,                        // <- key
-        v: value,                      // <- value
-        p: prev = that._l,             // <- previous entry
-        n: undefined,                  // <- next entry
-        r: false                       // <- removed
-      };
-      if(!that._f)that._f = entry;
-      if(prev)prev.n = entry;
-      that[SIZE]++;
-      // add to index
-      if(index !== 'F')that._i[index] = entry;
-    } return that;
-  },
-  getEntry: getEntry,
-  setStrong: function(C, NAME, IS_MAP){
-    // add .keys, .values, .entries, [@@iterator]
-    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
-    require('./$.iter-define')(C, NAME, function(iterated, kind){
-      this._t = iterated;  // target
-      this._k = kind;      // kind
-      this._l = undefined; // previous
-    }, function(){
-      var that  = this
-        , kind  = that._k
-        , entry = that._l;
-      // revert to the last existing entry
-      while(entry && entry.r)entry = entry.p;
-      // get next entry
-      if(!that._t || !(that._l = entry = entry ? entry.n : that._t._f)){
-        // or finish the iteration
-        that._t = undefined;
-        return step(1);
-      }
-      // return step by kind
-      if(kind == 'keys'  )return step(0, entry.k);
-      if(kind == 'values')return step(0, entry.v);
-      return step(0, [entry.k, entry.v]);
-    }, IS_MAP ? 'entries' : 'values' , !IS_MAP, true);
-
-    // add [@@species], 23.1.2.2, 23.2.2.2
-    species(C);
-    species(require('./$.core')[NAME]); // for wrapper
-  }
-};
-},{"./$":46,"./$.core":18,"./$.ctx":19,"./$.defined":21,"./$.for-of":28,"./$.has":31,"./$.hide":32,"./$.is-object":38,"./$.iter-define":42,"./$.iter-step":44,"./$.mix":51,"./$.species":64,"./$.strict-new":65,"./$.support-desc":71,"./$.uid":79}],15:[function(require,module,exports){
-// https://github.com/DavidBruant/Map-Set.prototype.toJSON
-var forOf   = require('./$.for-of')
-  , classof = require('./$.classof');
-module.exports = function(NAME){
-  return function toJSON(){
-    if(classof(this) != NAME)throw TypeError(NAME + "#toJSON isn't generic");
-    var arr = [];
-    forOf(this, false, arr.push, arr);
-    return arr;
-  };
-};
-},{"./$.classof":12,"./$.for-of":28}],16:[function(require,module,exports){
-'use strict';
-var hide         = require('./$.hide')
-  , anObject     = require('./$.an-object')
-  , strictNew    = require('./$.strict-new')
-  , forOf        = require('./$.for-of')
-  , method       = require('./$.array-methods')
-  , WEAK         = require('./$.uid')('weak')
-  , isObject     = require('./$.is-object')
-  , $has         = require('./$.has')
-  , isExtensible = Object.isExtensible || isObject
-  , find         = method(5)
-  , findIndex    = method(6)
-  , id           = 0;
-
-// fallback for frozen keys
-var frozenStore = function(that){
-  return that._l || (that._l = new FrozenStore);
-};
-var FrozenStore = function(){
-  this.a = [];
-};
-var findFrozen = function(store, key){
-  return find(store.a, function(it){
-    return it[0] === key;
-  });
-};
-FrozenStore.prototype = {
-  get: function(key){
-    var entry = findFrozen(this, key);
-    if(entry)return entry[1];
-  },
-  has: function(key){
-    return !!findFrozen(this, key);
-  },
-  set: function(key, value){
-    var entry = findFrozen(this, key);
-    if(entry)entry[1] = value;
-    else this.a.push([key, value]);
-  },
-  'delete': function(key){
-    var index = findIndex(this.a, function(it){
-      return it[0] === key;
-    });
-    if(~index)this.a.splice(index, 1);
-    return !!~index;
-  }
-};
-
-module.exports = {
-  getConstructor: function(wrapper, NAME, IS_MAP, ADDER){
-    var C = wrapper(function(that, iterable){
-      strictNew(that, C, NAME);
-      that._i = id++;      // collection id
-      that._l = undefined; // leak store for frozen objects
-      if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
-    });
-    require('./$.mix')(C.prototype, {
-      // 23.3.3.2 WeakMap.prototype.delete(key)
-      // 23.4.3.3 WeakSet.prototype.delete(value)
-      'delete': function(key){
-        if(!isObject(key))return false;
-        if(!isExtensible(key))return frozenStore(this)['delete'](key);
-        return $has(key, WEAK) && $has(key[WEAK], this._i) && delete key[WEAK][this._i];
-      },
-      // 23.3.3.4 WeakMap.prototype.has(key)
-      // 23.4.3.4 WeakSet.prototype.has(value)
-      has: function has(key){
-        if(!isObject(key))return false;
-        if(!isExtensible(key))return frozenStore(this).has(key);
-        return $has(key, WEAK) && $has(key[WEAK], this._i);
-      }
-    });
-    return C;
-  },
-  def: function(that, key, value){
-    if(!isExtensible(anObject(key))){
-      frozenStore(that).set(key, value);
-    } else {
-      $has(key, WEAK) || hide(key, WEAK, {});
-      key[WEAK][that._i] = value;
-    } return that;
-  },
-  frozenStore: frozenStore,
-  WEAK: WEAK
-};
-},{"./$.an-object":8,"./$.array-methods":10,"./$.for-of":28,"./$.has":31,"./$.hide":32,"./$.is-object":38,"./$.mix":51,"./$.strict-new":65,"./$.uid":79}],17:[function(require,module,exports){
-'use strict';
-var global     = require('./$.global')
-  , $def       = require('./$.def')
-  , BUGGY      = require('./$.iter-buggy')
-  , forOf      = require('./$.for-of')
-  , strictNew  = require('./$.strict-new');
-
-module.exports = function(NAME, wrapper, methods, common, IS_MAP, IS_WEAK){
-  var Base  = global[NAME]
-    , C     = Base
-    , ADDER = IS_MAP ? 'set' : 'add'
-    , proto = C && C.prototype
-    , O     = {};
-  var fixMethod = function(KEY){
-    var fn = proto[KEY];
-    require('./$.redef')(proto, KEY,
-      KEY == 'delete' ? function(a){ return fn.call(this, a === 0 ? 0 : a); }
-      : KEY == 'has' ? function has(a){ return fn.call(this, a === 0 ? 0 : a); }
-      : KEY == 'get' ? function get(a){ return fn.call(this, a === 0 ? 0 : a); }
-      : KEY == 'add' ? function add(a){ fn.call(this, a === 0 ? 0 : a); return this; }
-      : function set(a, b){ fn.call(this, a === 0 ? 0 : a, b); return this; }
-    );
-  };
-  if(typeof C != 'function' || !(IS_WEAK || !BUGGY && proto.forEach && proto.entries)){
-    // create collection constructor
-    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
-    require('./$.mix')(C.prototype, methods);
-  } else {
-    var inst  = new C
-      , chain = inst[ADDER](IS_WEAK ? {} : -0, 1)
-      , buggyZero;
-    // wrap for init collections from iterable
-    if(!require('./$.iter-detect')(function(iter){ new C(iter); })){ // eslint-disable-line no-new
-      C = wrapper(function(target, iterable){
-        strictNew(target, C, NAME);
-        var that = new Base;
-        if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
-        return that;
-      });
-      C.prototype = proto;
-      proto.constructor = C;
-    }
-    IS_WEAK || inst.forEach(function(val, key){
-      buggyZero = 1 / key === -Infinity;
-    });
-    // fix converting -0 key to +0
-    if(buggyZero){
-      fixMethod('delete');
-      fixMethod('has');
-      IS_MAP && fixMethod('get');
-    }
-    // + fix .add & .set for chaining
-    if(buggyZero || chain !== inst)fixMethod(ADDER);
-    // weak collections should not contains .clear method
-    if(IS_WEAK && proto.clear)delete proto.clear;
-  }
-
-  require('./$.tag')(C, NAME);
-
-  O[NAME] = C;
-  $def($def.G + $def.W + $def.F * (C != Base), O);
-
-  if(!IS_WEAK)common.setStrong(C, NAME, IS_MAP);
-
-  return C;
-};
-},{"./$.def":20,"./$.for-of":28,"./$.global":30,"./$.iter-buggy":39,"./$.iter-detect":43,"./$.mix":51,"./$.redef":58,"./$.strict-new":65,"./$.tag":72}],18:[function(require,module,exports){
-var core = module.exports = {};
-if(typeof __e == 'number')__e = core; // eslint-disable-line no-undef
-},{}],19:[function(require,module,exports){
-// optional / simple context binding
-var aFunction = require('./$.a-function');
-module.exports = function(fn, that, length){
-  aFunction(fn);
-  if(that === undefined)return fn;
-  switch(length){
-    case 1: return function(a){
-      return fn.call(that, a);
-    };
-    case 2: return function(a, b){
-      return fn.call(that, a, b);
-    };
-    case 3: return function(a, b, c){
-      return fn.call(that, a, b, c);
-    };
-  } return function(/* ...args */){
-      return fn.apply(that, arguments);
-    };
-};
-},{"./$.a-function":7}],20:[function(require,module,exports){
-var global     = require('./$.global')
-  , core       = require('./$.core')
-  , hide       = require('./$.hide')
-  , $redef     = require('./$.redef')
-  , PROTOTYPE  = 'prototype';
-var ctx = function(fn, that){
-  return function(){
-    return fn.apply(that, arguments);
-  };
-};
-var $def = function(type, name, source){
-  var key, own, out, exp
-    , isGlobal = type & $def.G
-    , isProto  = type & $def.P
-    , target   = isGlobal ? global : type & $def.S
-        ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE]
-    , exports  = isGlobal ? core : core[name] || (core[name] = {});
-  if(isGlobal)source = name;
-  for(key in source){
-    // contains in native
-    own = !(type & $def.F) && target && key in target;
-    // export native or passed
-    out = (own ? target : source)[key];
-    // bind timers to global for call from export context
-    if(type & $def.B && own)exp = ctx(out, global);
-    else exp = isProto && typeof out == 'function' ? ctx(Function.call, out) : out;
-    // extend global
-    if(target && !own)$redef(target, key, out);
-    // export
-    if(exports[key] != out)hide(exports, key, exp);
-    if(isProto)(exports[PROTOTYPE] || (exports[PROTOTYPE] = {}))[key] = out;
-  }
-};
-global.core = core;
-// type bitmap
-$def.F = 1;  // forced
-$def.G = 2;  // global
-$def.S = 4;  // static
-$def.P = 8;  // proto
-$def.B = 16; // bind
-$def.W = 32; // wrap
-module.exports = $def;
-},{"./$.core":18,"./$.global":30,"./$.hide":32,"./$.redef":58}],21:[function(require,module,exports){
-// 7.2.1 RequireObjectCoercible(argument)
-module.exports = function(it){
-  if(it == undefined)throw TypeError("Can't call method on  " + it);
-  return it;
-};
-},{}],22:[function(require,module,exports){
-var isObject = require('./$.is-object')
-  , document = require('./$.global').document
-  // in old IE typeof document.createElement is 'object'
-  , is = isObject(document) && isObject(document.createElement);
-module.exports = function(it){
-  return is ? document.createElement(it) : {};
-};
-},{"./$.global":30,"./$.is-object":38}],23:[function(require,module,exports){
-// all enumerable object keys, includes symbols
-var $ = require('./$');
-module.exports = function(it){
-  var keys       = $.getKeys(it)
-    , getSymbols = $.getSymbols;
-  if(getSymbols){
-    var symbols = getSymbols(it)
-      , isEnum  = $.isEnum
-      , i       = 0
-      , key;
-    while(symbols.length > i)if(isEnum.call(it, key = symbols[i++]))keys.push(key);
-  }
-  return keys;
-};
-},{"./$":46}],24:[function(require,module,exports){
-// 20.2.2.14 Math.expm1(x)
-module.exports = Math.expm1 || function expm1(x){
-  return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : Math.exp(x) - 1;
-};
-},{}],25:[function(require,module,exports){
-module.exports = function(exec){
-  try {
-    return !!exec();
-  } catch(e){
-    return true;
-  }
-};
-},{}],26:[function(require,module,exports){
-'use strict';
-module.exports = function(KEY, length, exec){
-  var defined  = require('./$.defined')
-    , SYMBOL   = require('./$.wks')(KEY)
-    , original = ''[KEY];
-  if(require('./$.fails')(function(){
-    var O = {};
-    O[SYMBOL] = function(){ return 7; };
-    return ''[KEY](O) != 7;
-  })){
-    require('./$.redef')(String.prototype, KEY, exec(defined, SYMBOL, original));
-    require('./$.hide')(RegExp.prototype, SYMBOL, length == 2
-      // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
-      // 21.2.5.11 RegExp.prototype[@@split](string, limit)
-      ? function(string, arg){ return original.call(string, this, arg); }
-      // 21.2.5.6 RegExp.prototype[@@match](string)
-      // 21.2.5.9 RegExp.prototype[@@search](string)
-      : function(string){ return original.call(string, this); }
-    );
-  }
-};
-},{"./$.defined":21,"./$.fails":25,"./$.hide":32,"./$.redef":58,"./$.wks":81}],27:[function(require,module,exports){
-'use strict';
-// 21.2.5.3 get RegExp.prototype.flags
-var anObject = require('./$.an-object');
-module.exports = function(){
-  var that   = anObject(this)
-    , result = '';
-  if(that.global)result += 'g';
-  if(that.ignoreCase)result += 'i';
-  if(that.multiline)result += 'm';
-  if(that.unicode)result += 'u';
-  if(that.sticky)result += 'y';
-  return result;
-};
-},{"./$.an-object":8}],28:[function(require,module,exports){
-var ctx         = require('./$.ctx')
-  , call        = require('./$.iter-call')
-  , isArrayIter = require('./$.is-array-iter')
-  , anObject    = require('./$.an-object')
-  , toLength    = require('./$.to-length')
-  , getIterFn   = require('./core.get-iterator-method');
-module.exports = function(iterable, entries, fn, that){
-  var iterFn = getIterFn(iterable)
-    , f      = ctx(fn, that, entries ? 2 : 1)
-    , index  = 0
-    , length, step, iterator;
-  if(typeof iterFn != 'function')throw TypeError(iterable + ' is not iterable!');
-  // fast case for arrays with default iterator
-  if(isArrayIter(iterFn))for(length = toLength(iterable.length); length > index; index++){
-    entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
-  } else for(iterator = iterFn.call(iterable); !(step = iterator.next()).done; ){
-    call(iterator, f, step.value, entries);
-  }
-};
-},{"./$.an-object":8,"./$.ctx":19,"./$.is-array-iter":36,"./$.iter-call":40,"./$.to-length":77,"./core.get-iterator-method":82}],29:[function(require,module,exports){
-// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
-var toString  = {}.toString
-  , toIObject = require('./$.to-iobject')
-  , getNames  = require('./$').getNames;
-
-var windowNames = typeof window == 'object' && Object.getOwnPropertyNames
-  ? Object.getOwnPropertyNames(window) : [];
-
-var getWindowNames = function(it){
-  try {
-    return getNames(it);
-  } catch(e){
-    return windowNames.slice();
-  }
-};
-
-module.exports.get = function getOwnPropertyNames(it){
-  if(windowNames && toString.call(it) == '[object Window]')return getWindowNames(it);
-  return getNames(toIObject(it));
-};
-},{"./$":46,"./$.to-iobject":76}],30:[function(require,module,exports){
-var global = typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
-module.exports = global;
-if(typeof __g == 'number')__g = global; // eslint-disable-line no-undef
-},{}],31:[function(require,module,exports){
-var hasOwnProperty = {}.hasOwnProperty;
-module.exports = function(it, key){
-  return hasOwnProperty.call(it, key);
-};
-},{}],32:[function(require,module,exports){
-var $          = require('./$')
-  , createDesc = require('./$.property-desc');
-module.exports = require('./$.support-desc') ? function(object, key, value){
-  return $.setDesc(object, key, createDesc(1, value));
-} : function(object, key, value){
-  object[key] = value;
-  return object;
-};
-},{"./$":46,"./$.property-desc":57,"./$.support-desc":71}],33:[function(require,module,exports){
-module.exports = require('./$.global').document && document.documentElement;
-},{"./$.global":30}],34:[function(require,module,exports){
-// fast apply, http://jsperf.lnkit.com/fast-apply/5
-module.exports = function(fn, args, that){
-  var un = that === undefined;
-  switch(args.length){
-    case 0: return un ? fn()
-                      : fn.call(that);
-    case 1: return un ? fn(args[0])
-                      : fn.call(that, args[0]);
-    case 2: return un ? fn(args[0], args[1])
-                      : fn.call(that, args[0], args[1]);
-    case 3: return un ? fn(args[0], args[1], args[2])
-                      : fn.call(that, args[0], args[1], args[2]);
-    case 4: return un ? fn(args[0], args[1], args[2], args[3])
-                      : fn.call(that, args[0], args[1], args[2], args[3]);
-  } return              fn.apply(that, args);
-};
-},{}],35:[function(require,module,exports){
-// indexed object, fallback for non-array-like ES3 strings
-var cof = require('./$.cof');
-module.exports = 0 in Object('z') ? Object : function(it){
-  return cof(it) == 'String' ? it.split('') : Object(it);
-};
-},{"./$.cof":13}],36:[function(require,module,exports){
-// check on default Array iterator
-var Iterators = require('./$.iterators')
-  , ITERATOR  = require('./$.wks')('iterator');
-module.exports = function(it){
-  return (Iterators.Array || Array.prototype[ITERATOR]) === it;
-};
-},{"./$.iterators":45,"./$.wks":81}],37:[function(require,module,exports){
-// 20.1.2.3 Number.isInteger(number)
-var isObject = require('./$.is-object')
-  , floor    = Math.floor;
-module.exports = function isInteger(it){
-  return !isObject(it) && isFinite(it) && floor(it) === it;
-};
-},{"./$.is-object":38}],38:[function(require,module,exports){
-// http://jsperf.com/core-js-isobject
-module.exports = function(it){
-  return it !== null && (typeof it == 'object' || typeof it == 'function');
-};
-},{}],39:[function(require,module,exports){
-// Safari has buggy iterators w/o `next`
-module.exports = 'keys' in [] && !('next' in [].keys());
-},{}],40:[function(require,module,exports){
-// call something on iterator step with safe closing on error
-var anObject = require('./$.an-object');
-module.exports = function(iterator, fn, value, entries){
-  try {
-    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
-  // 7.4.6 IteratorClose(iterator, completion)
-  } catch(e){
-    var ret = iterator['return'];
-    if(ret !== undefined)anObject(ret.call(iterator));
-    throw e;
-  }
-};
-},{"./$.an-object":8}],41:[function(require,module,exports){
-'use strict';
-var $ = require('./$')
-  , IteratorPrototype = {};
-
-// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
-require('./$.hide')(IteratorPrototype, require('./$.wks')('iterator'), function(){ return this; });
-
-module.exports = function(Constructor, NAME, next){
-  Constructor.prototype = $.create(IteratorPrototype, {next: require('./$.property-desc')(1,next)});
-  require('./$.tag')(Constructor, NAME + ' Iterator');
-};
-},{"./$":46,"./$.hide":32,"./$.property-desc":57,"./$.tag":72,"./$.wks":81}],42:[function(require,module,exports){
-'use strict';
-var LIBRARY         = require('./$.library')
-  , $def            = require('./$.def')
-  , $redef          = require('./$.redef')
-  , hide            = require('./$.hide')
-  , has             = require('./$.has')
-  , SYMBOL_ITERATOR = require('./$.wks')('iterator')
-  , Iterators       = require('./$.iterators')
-  , FF_ITERATOR     = '@@iterator'
-  , KEYS            = 'keys'
-  , VALUES          = 'values';
-var returnThis = function(){ return this; };
-module.exports = function(Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCE){
-  require('./$.iter-create')(Constructor, NAME, next);
-  var createMethod = function(kind){
-    switch(kind){
-      case KEYS: return function keys(){ return new Constructor(this, kind); };
-      case VALUES: return function values(){ return new Constructor(this, kind); };
-    } return function entries(){ return new Constructor(this, kind); };
-  };
-  var TAG      = NAME + ' Iterator'
-    , proto    = Base.prototype
-    , _native  = proto[SYMBOL_ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT]
-    , _default = _native || createMethod(DEFAULT)
-    , methods, key;
-  // Fix native
-  if(_native){
-    var IteratorPrototype = require('./$').getProto(_default.call(new Base));
-    // Set @@toStringTag to native iterators
-    require('./$.tag')(IteratorPrototype, TAG, true);
-    // FF fix
-    if(!LIBRARY && has(proto, FF_ITERATOR))hide(IteratorPrototype, SYMBOL_ITERATOR, returnThis);
-  }
-  // Define iterator
-  if(!LIBRARY || FORCE)hide(proto, SYMBOL_ITERATOR, _default);
-  // Plug for library
-  Iterators[NAME] = _default;
-  Iterators[TAG]  = returnThis;
-  if(DEFAULT){
-    methods = {
-      keys:    IS_SET            ? _default : createMethod(KEYS),
-      values:  DEFAULT == VALUES ? _default : createMethod(VALUES),
-      entries: DEFAULT != VALUES ? _default : createMethod('entries')
-    };
-    if(FORCE)for(key in methods){
-      if(!(key in proto))$redef(proto, key, methods[key]);
-    } else $def($def.P + $def.F * require('./$.iter-buggy'), NAME, methods);
-  }
-};
-},{"./$":46,"./$.def":20,"./$.has":31,"./$.hide":32,"./$.iter-buggy":39,"./$.iter-create":41,"./$.iterators":45,"./$.library":48,"./$.redef":58,"./$.tag":72,"./$.wks":81}],43:[function(require,module,exports){
-var SYMBOL_ITERATOR = require('./$.wks')('iterator')
-  , SAFE_CLOSING    = false;
-try {
-  var riter = [7][SYMBOL_ITERATOR]();
-  riter['return'] = function(){ SAFE_CLOSING = true; };
-  Array.from(riter, function(){ throw 2; });
-} catch(e){ /* empty */ }
-module.exports = function(exec){
-  if(!SAFE_CLOSING)return false;
-  var safe = false;
-  try {
-    var arr  = [7]
-      , iter = arr[SYMBOL_ITERATOR]();
-    iter.next = function(){ safe = true; };
-    arr[SYMBOL_ITERATOR] = function(){ return iter; };
-    exec(arr);
-  } catch(e){ /* empty */ }
-  return safe;
-};
-},{"./$.wks":81}],44:[function(require,module,exports){
-module.exports = function(done, value){
-  return {value: value, done: !!done};
-};
-},{}],45:[function(require,module,exports){
-module.exports = {};
-},{}],46:[function(require,module,exports){
-var $Object = Object;
-module.exports = {
-  create:     $Object.create,
-  getProto:   $Object.getPrototypeOf,
-  isEnum:     {}.propertyIsEnumerable,
-  getDesc:    $Object.getOwnPropertyDescriptor,
-  setDesc:    $Object.defineProperty,
-  setDescs:   $Object.defineProperties,
-  getKeys:    $Object.keys,
-  getNames:   $Object.getOwnPropertyNames,
-  getSymbols: $Object.getOwnPropertySymbols,
-  each:       [].forEach
-};
-},{}],47:[function(require,module,exports){
-var $         = require('./$')
-  , toIObject = require('./$.to-iobject');
-module.exports = function(object, el){
-  var O      = toIObject(object)
-    , keys   = $.getKeys(O)
-    , length = keys.length
-    , index  = 0
-    , key;
-  while(length > index)if(O[key = keys[index++]] === el)return key;
-};
-},{"./$":46,"./$.to-iobject":76}],48:[function(require,module,exports){
-module.exports = false;
-},{}],49:[function(require,module,exports){
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Equation = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+/*
+ * Constants
+ * Keys must be UPPERCASE
+ * Values Can be a constant value or a function returning a value
+ *        this function doesn't take any arguments (use case: random constats)
+ */
+exports['default'] = {
+  PI: Math.PI,
+  E: Math.E,
+  RAND: Math.random
+};
+module.exports = exports['default'];
+},{}],2:[function(require,module,exports){
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+var parseFormat = function parseFormat(a) {
+  var split = a.split('1');
+  return {
+    left: split[0].length,
+    right: split[1].length
+  };
+};
+
+exports.parseFormat = parseFormat;
+var isNumber = function isNumber(a) {
+  return !isNaN(+a);
+};
+
+exports.isNumber = isNumber;
+var parseNumbers = (function (_parseNumbers) {
+  function parseNumbers(_x) {
+    return _parseNumbers.apply(this, arguments);
+  }
+
+  parseNumbers.toString = function () {
+    return _parseNumbers.toString();
+  };
+
+  return parseNumbers;
+})(function (a) {
+  return a.map(function (b) {
+    if (isNumber(b)) {
+      return parseFloat(b);
+    }
+    if (Array.isArray(b)) {
+      return parseNumbers(b);
+    }
+    return b;
+  });
+});
+
+exports.parseNumbers = parseNumbers;
+var dive = function dive(arr, n) {
+  var result = arr;
+  for (var i = 0; i < n; ++i) {
+    result = result[result.length - 1];
+  }
+  return result;
+};
+
+exports.dive = dive;
+var deep = (function (_deep) {
+  function deep(_x2, _x3) {
+    return _deep.apply(this, arguments);
+  }
+
+  deep.toString = function () {
+    return _deep.toString();
+  };
+
+  return deep;
+})(function (arr, n) {
+  var index = arguments[2] === undefined ? 0 : arguments[2];
+
+  if (n < 2) {
+    return { arr: arr, index: index };
+  }
+
+  var d = arr.reduce(function (a, b, i) {
+    if (Array.isArray(b)) {
+      var _deep2 = deep(b, n - 1, i);
+
+      var _arr = _deep2.arr;
+      var x = _deep2.index;
+      var merged = a.concat(_arr);
+
+      index = x;
+      return merged;
+    }
+    return a;
+  }, []);
+
+  return { arr: d, index: index };
+});
+
+exports.deep = deep;
+var diveTo = (function (_diveTo) {
+  function diveTo(_x4, _x5, _x6) {
+    return _diveTo.apply(this, arguments);
+  }
+
+  diveTo.toString = function () {
+    return _diveTo.toString();
+  };
+
+  return diveTo;
+})(function (arr, indexes, replace) {
+  var answer = [];
+  if (indexes.some(Array.isArray)) {
+    var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (var _iterator = indexes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+        var index = _step.value;
+
+        answer.push(diveTo(arr, index, replace));
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator['return']) {
+          _iterator['return']();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+  } else {
+    arr[indexes[0]] = replace;
+    return replace;
+  }
+
+  return answer;
+});
+
+exports.diveTo = diveTo;
+var flatten = (function (_flatten) {
+  function flatten(_x7) {
+    return _flatten.apply(this, arguments);
+  }
+
+  flatten.toString = function () {
+    return _flatten.toString();
+  };
+
+  return flatten;
+})(function (arr) {
+  if (!Array.isArray(arr) || !arr.some(Array.isArray)) {
+    return arr;
+  }
+
+  return arr.reduce(function (a, b) {
+    return a.concat(flatten(b));
+  }, []);
+});
+
+exports.flatten = flatten;
+var removeSymbols = function removeSymbols(string) {
+  return string.toString().replace(/\W/g, '');
+};
+exports.removeSymbols = removeSymbols;
+},{}],3:[function(require,module,exports){
+'use strict';
+
+var _interopRequireWildcard = function (obj) { return obj && obj.__esModule ? obj : { 'default': obj }; };
+
+var _slicedToArray = function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } };
+
+var _toConsumableArray = function (arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } };
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+
+require('babel/polyfill');
+
+var _ReadStream = require('./readstream');
+
+var _ReadStream2 = _interopRequireWildcard(_ReadStream);
+
+var _operators = require('./operators');
+
+var _operators2 = _interopRequireWildcard(_operators);
+
+var _constants = require('./constants');
+
+var _constants2 = _interopRequireWildcard(_constants);
+
+var _import = require('./helpers');
+
+var _ = _interopRequireWildcard(_import);
+
+var Equation = {
+  /**
+    * Solves the given math expression, following these steps:
+    * 1. Replace constants in the expression
+    * 2. parse the expression, separating numbers and operators into
+    *    an array
+    * 3. Sort the stack by operators' precedence, it actually groups the
+    *    operator with it's arguments n-level deep
+    * 4. Apply parseFloat to numbers of the array
+    * 5. Solve groups recursively
+    *
+    * @param {String} expression
+    *        The math expression to solve
+    * @return {Number}
+    *         Result of the expression
+    */
+  solve: function solve(expression) {
+    // replace constants with their values
+    expression = replaceConstants(expression);
+
+    var stack = parseExpression(expression);
+    stack = sortStack(stack);
+    stack = _.parseNumbers(stack);
+    stack = solveStack(stack);
+
+    return stack;
+  },
+
+  /**
+    * Creates an equation function which replaces variables
+    * in the given expression with the values specified in order,
+    * and solves the new expression
+    *
+    * Example:
+    *   equation('x+y+z')(2, 5, 6) => solve('2+5+6')
+    *
+    * @param {String} expression
+    *        The expression to create an equation for (containing variables)
+    * @return {Function}
+    *         The function which replaces variables with values in order
+    *         and solves the expression
+    */
+  equation: function equation(expression) {
+    var stack = parseExpression(expression);
+    var variables = [];
+
+    stack.forEach(function varCheck(a) {
+      if (Array.isArray(a)) {
+        return a.forEach(varCheck);
+      }
+      if (isVariable(a)) {
+        // grouped variables like (y) need to have their parantheses removed
+        variables.push(_.removeSymbols(a));
+      }
+    });
+
+    return function () {
+      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      stack.forEach(function varCheck(a, i, arr) {
+        if (Array.isArray(a)) {
+          return a.forEach(varCheck);
+        }
+
+        var index = variables.indexOf(a);
+        if (index > -1) {
+          // grouped variables like (y) need to have their parantheses removed
+          arr[i] = args[index];
+        }
+      });
+
+      stack = sortStack(stack);
+      stack = _.parseNumbers(stack);
+      stack = solveStack(stack);
+
+      return stack;
+    };
+  },
+
+  registerOperator: function registerOperator(key, options) {
+    _operators2['default'][key] = options;
+  },
+
+  registerConstant: function registerConstant(key, options) {
+    _constants2['default'][key] = options;
+  }
+};
+
+var solveStack = (function (_solveStack) {
+  function solveStack(_x) {
+    return _solveStack.apply(this, arguments);
+  }
+
+  solveStack.toString = function () {
+    return _solveStack.toString();
+  };
+
+  return solveStack;
+})(function (stack) {
+  // if an operator takes an expression argument, we should not dive into it
+  // and solve the expression inside
+  var hasExpressionArgument = stack.some(function (a) {
+    return _operators2['default'][a] && _operators2['default'][a].hasExpression;
+  });
+
+  if (!hasExpressionArgument && stack.some(Array.isArray)) {
+    stack = stack.map(function (group) {
+      if (!Array.isArray(group)) {
+        return group;
+      }
+      return solveStack(group);
+    });
+
+    return solveStack(stack);
+  } else {
+    return evaluate(stack);
+  }
+});
+
+var PRECEDENCES = Object.keys(_operators2['default']).map(function (key) {
+  return _operators2['default'][key].precedence;
+});
+
+var MAX_PRECEDENCE = Math.max.apply(Math, _toConsumableArray(PRECEDENCES));
+var MIN_PRECEDENCE = Math.min.apply(Math, _toConsumableArray(PRECEDENCES));
+
+/**
+  * Parses the given expression into an array of separated
+  * numbers and operators/functions.
+  * The result is passed to parseGroups
+  *
+  * @param {String} expression
+  *        The expression to parse
+  * @return {Array}
+  *         The parsed array
+  */
+var parseExpression = function parseExpression(expression) {
+  // function arguments can be separated using comma,
+  // but we parse as groups, so this is the solution to getting comma to work
+  // sigma(0, 4, 2@) becomes sigma(0)(4)(2@) so every argument is parsed
+  // separately
+  expression = expression.replace(/,/g, ')(');
+
+  var stream = new _ReadStream2['default'](expression),
+      stack = [],
+      record = '',
+      cur = undefined,
+      past = undefined;
+
+  // Create an array of separated numbers & operators
+  while (stream.next()) {
+    cur = stream.current();
+    past = stack.length - 1;
+
+    if (cur === ' ') {
+      continue;
+    }
+
+    // it's probably a function with a length more than one
+    if (!_.isNumber(cur) && !_operators2['default'][cur] && cur !== '.' && cur !== '(' && cur !== ')') {
+
+      record += cur;
+    } else if (record.length) {
+      var beforeRecord = past - (record.length - 1);
+      if (isVariable(record) && _.isNumber(stack[beforeRecord])) {
+        stack.push('*');
+      }
+      stack.push(record, cur);
+      record = '';
+
+      // numbers and decimals
+    } else if (_.isNumber(stack[past]) && (_.isNumber(cur) || cur === '.')) {
+
+      stack[past] += cur;
+
+      // negation sign
+    } else if (stack[past] === '-') {
+      var beforeSign = stack[past - 1];
+
+      // 2 / -5 is OK, pass
+      if (_operators2['default'][beforeSign]) {
+        stack[past] += cur;
+
+        // (2+1) - 5 becomes (2+1) + -5
+      } else if (beforeSign === ')') {
+        stack[past] = '+';
+        stack.push('-' + cur);
+
+        // 2 - 5 is also OK, pass
+      } else if (_.isNumber(beforeSign) || isVariable(beforeSign)) {
+        stack.push(cur);
+      } else {
+        stack[past] += cur;
+      }
+    } else {
+      stack.push(cur);
+    }
+  }
+  if (record.length) {
+    var beforeRecord = past - (record.length - 1);
+    if (isVariable(record) && _.isNumber(stack[beforeRecord])) {
+      stack.push('*');
+    }
+    stack.push(record);
+  }
+
+  return parseGroups(stack);
+};
+
+/**
+  * Takes the parsed array from parseExpression and
+  * groups up expressions in parantheses in deep arrays
+  *
+  * Example: 2+(5+4) becomes [2, [5, '+', 4]]
+  *
+  * @param {Array} stack
+  *        The parsed expression
+  * @return {Array}
+  *         Grouped up expression
+  */
+var parseGroups = function parseGroups(stack) {
+  // Parantheses become inner arrays which will then be processed first
+  var depth = 0;
+  return stack.reduce(function (a, b) {
+    if (b.indexOf('(') > -1) {
+      if (b.length > 1) {
+        _.dive(a, depth).push(b.replace('(', ''), []);
+      } else {
+        _.dive(a, depth).push([]);
+      }
+      depth++;
+    } else if (b === ')') {
+      depth--;
+    } else {
+      _.dive(a, depth).push(b);
+    }
+    return a;
+  }, []);
+};
+
+/**
+  * Gives information about an operator's format
+  * including number of left and right arguments
+  *
+  * @param {String/Object} operator
+  *        The operator object or operator name (e.g. +, -)
+  * @return {Object}
+  *         An object including the count of left and right arguments
+  */
+var formatInfo = function formatInfo(operator) {
+  var op = typeof operator === 'string' ? _operators2['default'][operator] : operator;
+
+  if (!op) {
+    return null;
+  }
+
+  var format = op.format.split('1'),
+      left = format[0].length,
+      right = format[1].length;
+
+  return { left: left, right: right };
+};
+
+/**
+  * Groups up operators and their arguments based on their precedence
+  * in deep arrays, the higher the priority, the deeper the group.
+  * This simplifies the evaluating process, the only thing to do is to
+  * evaluate from bottom up, evaluating deep groups first
+  *
+  * @param {Array} stack
+  *        The parsed and grouped expression
+  * @return {Array}
+  *         Grouped expression based on precedences
+  */
+var sortStack = (function (_sortStack) {
+  function sortStack(_x2) {
+    return _sortStack.apply(this, arguments);
+  }
+
+  sortStack.toString = function () {
+    return _sortStack.toString();
+  };
+
+  return sortStack;
+})(function (stack) {
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = stack.entries()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var _step$value = _slicedToArray(_step.value, 2);
+
+      var index = _step$value[0];
+      var item = _step$value[1];
+
+      if (Array.isArray(item)) {
+        stack.splice(index, 1, sortStack(item));
+      }
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator['return']) {
+        _iterator['return']();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  for (var i = MIN_PRECEDENCE; i <= MAX_PRECEDENCE; i++) {
+    for (var index = 0; index < stack.length; ++index) {
+      var item = stack[index];
+      var op = _operators2['default'][item];
+
+      if (!op || op.precedence !== i) {
+        continue;
+      }
+
+      var _formatInfo = formatInfo(op);
+
+      var left = _formatInfo.left;
+      var right = _formatInfo.right;
+
+      var group = stack.splice(index - left, left + right + 1, []);
+      stack[index - left] = group;
+
+      for (var y = 0; y < i; y++) {
+        group = [group];
+      }
+
+      index -= right;
+    }
+  }
+
+  return stack;
+});
+
+/**
+  * Evaluates the given math expression.
+  * The expression is an array with an operator and arguments
+  *
+  * Example: evaluate([2, '+', 4]) == 6
+  *
+  * @param {Array} stack
+  *        A single math expression
+  * @return {Number}
+  *         Result of the expression
+  */
+var evaluate = function evaluate(stack) {
+  var _operators$op;
+
+  var op = findOperator(stack);
+  if (!op) {
+    return stack[0];
+  }
+
+  var _formatInfo2 = formatInfo(op);
+
+  var left = _formatInfo2.left;
+
+  var leftArguments = stack.slice(0, left),
+      rightArguments = stack.slice(left + 1);
+
+  return fixFloat((_operators$op = _operators2['default'][op]).fn.apply(_operators$op, _toConsumableArray(leftArguments).concat(_toConsumableArray(rightArguments))));
+};
+
+/**
+  * Finds the first operator in an array and returns it
+  *
+  * @param {Array} arr
+  *        The array to look for an operator in
+  * @return {Object}
+  *         The operator object or null if no operator is found
+  */
+var findOperator = function findOperator(arr) {
+  var _iteratorNormalCompletion2 = true;
+  var _didIteratorError2 = false;
+  var _iteratorError2 = undefined;
+
+  try {
+    for (var _iterator2 = arr[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+      var o = _step2.value;
+
+      if (typeof o === 'string') {
+        return o;
+      }
+    }
+  } catch (err) {
+    _didIteratorError2 = true;
+    _iteratorError2 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion2 && _iterator2['return']) {
+        _iterator2['return']();
+      }
+    } finally {
+      if (_didIteratorError2) {
+        throw _iteratorError2;
+      }
+    }
+  }
+
+  return null;
+};
+
+/**
+  * Replaces constants in a string with their values
+  *
+  * @param {String} expression
+  *        The expression to replace constants in
+  * @return {String}
+  *         The expression with constants replaced
+  */
+var replaceConstants = function replaceConstants(expression) {
+  return expression.replace(/[A-Z]*/g, function (a) {
+    var c = _constants2['default'][a];
+    if (!c) {
+      return a;
+    }
+    return typeof c === 'function' ? c() : c;
+  });
+};
+
+/**
+  * Fixes JavaScript's floating point precisions - Issue #5
+  *
+  * @param {Number} number
+  *        The number to fix
+  * @return {Number}
+  *         Fixed number
+  */
+var fixFloat = function fixFloat(number) {
+  return +number.toFixed(15);
+};
+
+/**
+  * Recognizes variables such as x, y, z
+  * @param {String} a
+  *        The string to check for
+  * @return {Boolean}
+  *         true if variable, else false
+  */
+
+var SPECIALS = '()[]{}'.split('');
+var isVariable = function isVariable(a) {
+  return typeof a === 'string' && !_.isNumber(a) && !_operators2['default'][a] && a === a.toLowerCase() && SPECIALS.indexOf(a) === -1;
+};
+
+exports.isVariable = isVariable;
+exports['default'] = Equation;
+},{"./constants":1,"./helpers":2,"./operators":4,"./readstream":5,"babel/polyfill":189}],4:[function(require,module,exports){
+'use strict';
+
+var _interopRequireWildcard = function (obj) { return obj && obj.__esModule ? obj : { 'default': obj }; };
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+
+var _Equation = require('./index');
+
+var _Equation2 = _interopRequireWildcard(_Equation);
+
+/*
+ * Operators and Functions
+ * fn: function used to evaluate value
+ * format: the format using which arguments are parsed:
+ *         0 indicates an argument and 1 indicates the operator
+ *         e.g: factorial is 01, add is 010, like 2!, 2+2
+ * precedence: determines which operators should be evaluated first
+ *             the lower the value, the higher the precedence
+ * hasExpression: determines if any of the operator arguments are an expression
+ *                This way, arguments will not be solved by equation and instead
+ *                you have to call solve on each argument yourself.
+ *                You get the arguments as parsed arrays sigma(0, 5, 2@) becomes
+ *                sigma(0, 5, [2, '*', '@']). See sigma operator for reference
+ */
+exports['default'] = {
+  '^': {
+    fn: function fn(a, b) {
+      return Math.pow(a, b);
+    },
+    format: '010',
+    precedence: 0
+  },
+  '*': {
+    fn: function fn(a, b) {
+      return a * b;
+    },
+    format: '010',
+    precedence: 1
+  },
+  '/': {
+    fn: function fn(a, b) {
+      return a / b;
+    },
+    format: '010',
+    precedence: 1
+  },
+  '%': {
+    fn: function fn(a, b) {
+      return a % b;
+    },
+    format: '010',
+    precedence: 1
+  },
+  '\\': {
+    fn: function fn(a, b) {
+      return Math.floor(a / b);
+    },
+    format: '010',
+    precedence: 1
+  },
+  '+': {
+    fn: function fn(a, b) {
+      return a + b;
+    },
+    format: '010',
+    precedence: 2
+  },
+  '-': {
+    fn: function fn(a, b) {
+      return a - b;
+    },
+    format: '010',
+    precedence: 2
+  },
+  '!': {
+    fn: function fn(a) {
+      var sum = 1;
+      for (var i = 0; i < a; ++i) {
+        sum *= i;
+      }
+      return sum;
+    },
+    format: '01',
+    precedence: 2
+  },
+  log: {
+    fn: Math.log,
+    format: '10',
+    precedence: -1
+  },
+  ln: {
+    fn: Math.log,
+    format: '10',
+    precedence: -1
+  },
+  lg: {
+    fn: function fn(a) {
+      return Math.log(a) / Math.log(2);
+    },
+    format: '10',
+    precedence: -1
+  },
+  sin: {
+    fn: Math.sin,
+    format: '10',
+    precedence: -1
+  },
+  cos: {
+    fn: Math.cos,
+    format: '10',
+    precedence: -1
+  },
+  tan: {
+    fn: Math.tan,
+    format: '10',
+    precedence: -1
+  },
+  cot: {
+    fn: Math.cot,
+    format: '10',
+    precedence: -1
+  },
+  round: {
+    fn: Math.round,
+    format: '10',
+    precedence: -1
+  },
+  floor: {
+    fn: Math.floor,
+    format: '10',
+    precedence: -1
+  },
+  sigma: {
+    fn: function fn(from, to, expression) {
+      var expr = expression.join('').replace(/,/g, '');
+      var regex = new RegExp(ITERATOR_SIGN, 'g');
+
+      var sum = 0;
+      for (var i = from; i <= to; i++) {
+        sum += _Equation2['default'].solve(expr.replace(regex, i));
+      }
+      return sum;
+    },
+    format: '1000',
+    hasExpression: true,
+    precedence: -1
+  }
+};
+
+var ITERATOR_SIGN = '@';
+module.exports = exports['default'];
+},{"./index":3}],5:[function(require,module,exports){
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+
+exports['default'] = function (string) {
+  var i = 0,
+      buffer = [];
+  return {
+    next: function next() {
+      buffer.push(string[i]);
+
+      if (i >= string.length) {
+        return null;
+      }
+      return string[i++];
+    },
+    current: function current() {
+      return string[i - 1];
+    },
+    index: function index() {
+      return i - 1;
+    },
+    to: function to(n) {
+      var temp = '';
+      var dest = i + n;
+      for (i = i; i < dest; ++i) {
+        temp += [string[i]];
+      }
+      return temp;
+    },
+    drain: function drain() {
+      return buffer.splice(0, buffer.length);
+    },
+    replace: (function (_replace) {
+      function replace(_x, _x2, _x3) {
+        return _replace.apply(this, arguments);
+      }
+
+      replace.toString = function () {
+        return _replace.toString();
+      };
+
+      return replace;
+    })(function (start, end, replace) {
+      var temp = string.split('');
+      temp.splice(start, end, replace);
+      string = temp.join('');
+
+      i = i - (end - start);
+    }),
+    go: function go(n) {
+      i += n;
+    },
+    all: function all() {
+      return string;
+    }
+  };
+};
+
+module.exports = exports['default'];
+},{}],6:[function(require,module,exports){
+(function (global){
+"use strict";
+
+require("core-js/shim");
+
+require("regenerator/runtime");
+
+if (global._babelPolyfill) {
+  throw new Error("only one instance of babel/polyfill is allowed");
+}
+global._babelPolyfill = true;
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"core-js/shim":186,"regenerator/runtime":187}],7:[function(require,module,exports){
+module.exports = function(it){
+  if(typeof it != 'function')throw TypeError(it + ' is not a function!');
+  return it;
+};
+},{}],8:[function(require,module,exports){
+var isObject = require('./$.is-object');
+module.exports = function(it){
+  if(!isObject(it))throw TypeError(it + ' is not an object!');
+  return it;
+};
+},{"./$.is-object":38}],9:[function(require,module,exports){
+// false -> Array#indexOf
+// true  -> Array#includes
+var toIObject = require('./$.to-iobject')
+  , toLength  = require('./$.to-length')
+  , toIndex   = require('./$.to-index');
+module.exports = function(IS_INCLUDES){
+  return function($this, el, fromIndex){
+    var O      = toIObject($this)
+      , length = toLength(O.length)
+      , index  = toIndex(fromIndex, length)
+      , value;
+    // Array#includes uses SameValueZero equality algorithm
+    if(IS_INCLUDES && el != el)while(length > index){
+      value = O[index++];
+      if(value != value)return true;
+    // Array#toIndex ignores holes, Array#includes - not
+    } else for(;length > index; index++)if(IS_INCLUDES || index in O){
+      if(O[index] === el)return IS_INCLUDES || index;
+    } return !IS_INCLUDES && -1;
+  };
+};
+},{"./$.to-index":74,"./$.to-iobject":76,"./$.to-length":77}],10:[function(require,module,exports){
+// 0 -> Array#forEach
+// 1 -> Array#map
+// 2 -> Array#filter
+// 3 -> Array#some
+// 4 -> Array#every
+// 5 -> Array#find
+// 6 -> Array#findIndex
+var ctx      = require('./$.ctx')
+  , IObject  = require('./$.iobject')
+  , toObject = require('./$.to-object')
+  , toLength = require('./$.to-length');
+module.exports = function(TYPE){
+  var IS_MAP        = TYPE == 1
+    , IS_FILTER     = TYPE == 2
+    , IS_SOME       = TYPE == 3
+    , IS_EVERY      = TYPE == 4
+    , IS_FIND_INDEX = TYPE == 6
+    , NO_HOLES      = TYPE == 5 || IS_FIND_INDEX;
+  return function($this, callbackfn, that){
+    var O      = toObject($this)
+      , self   = IObject(O)
+      , f      = ctx(callbackfn, that, 3)
+      , length = toLength(self.length)
+      , index  = 0
+      , result = IS_MAP ? Array(length) : IS_FILTER ? [] : undefined
+      , val, res;
+    for(;length > index; index++)if(NO_HOLES || index in self){
+      val = self[index];
+      res = f(val, index, O);
+      if(TYPE){
+        if(IS_MAP)result[index] = res;            // map
+        else if(res)switch(TYPE){
+          case 3: return true;                    // some
+          case 5: return val;                     // find
+          case 6: return index;                   // findIndex
+          case 2: result.push(val);               // filter
+        } else if(IS_EVERY)return false;          // every
+      }
+    }
+    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
+  };
+};
+},{"./$.ctx":19,"./$.iobject":35,"./$.to-length":77,"./$.to-object":78}],11:[function(require,module,exports){
+// 19.1.2.1 Object.assign(target, source, ...)
+var toObject = require('./$.to-object')
+  , IObject  = require('./$.iobject')
+  , enumKeys = require('./$.enum-keys');
+/* eslint-disable no-unused-vars */
+module.exports = Object.assign || function assign(target, source){
+/* eslint-enable no-unused-vars */
+  var T = toObject(target)
+    , l = arguments.length
+    , i = 1;
+  while(l > i){
+    var S      = IObject(arguments[i++])
+      , keys   = enumKeys(S)
+      , length = keys.length
+      , j      = 0
+      , key;
+    while(length > j)T[key = keys[j++]] = S[key];
+  }
+  return T;
+};
+},{"./$.enum-keys":23,"./$.iobject":35,"./$.to-object":78}],12:[function(require,module,exports){
+// getting tag from 19.1.3.6 Object.prototype.toString()
+var cof = require('./$.cof')
+  , TAG = require('./$.wks')('toStringTag')
+  // ES3 wrong here
+  , ARG = cof(function(){ return arguments; }()) == 'Arguments';
+
+module.exports = function(it){
+  var O, T, B;
+  return it === undefined ? 'Undefined' : it === null ? 'Null'
+    // @@toStringTag case
+    : typeof (T = (O = Object(it))[TAG]) == 'string' ? T
+    // builtinTag case
+    : ARG ? cof(O)
+    // ES3 arguments fallback
+    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+};
+},{"./$.cof":13,"./$.wks":81}],13:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = function(it){
+  return toString.call(it).slice(8, -1);
+};
+},{}],14:[function(require,module,exports){
+'use strict';
+var $            = require('./$')
+  , hide         = require('./$.hide')
+  , ctx          = require('./$.ctx')
+  , species      = require('./$.species')
+  , strictNew    = require('./$.strict-new')
+  , defined      = require('./$.defined')
+  , forOf        = require('./$.for-of')
+  , step         = require('./$.iter-step')
+  , ID           = require('./$.uid')('id')
+  , $has         = require('./$.has')
+  , isObject     = require('./$.is-object')
+  , isExtensible = Object.isExtensible || isObject
+  , SUPPORT_DESC = require('./$.support-desc')
+  , SIZE         = SUPPORT_DESC ? '_s' : 'size'
+  , id           = 0;
+
+var fastKey = function(it, create){
+  // return primitive with prefix
+  if(!isObject(it))return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
+  if(!$has(it, ID)){
+    // can't set id to frozen object
+    if(!isExtensible(it))return 'F';
+    // not necessary to add id
+    if(!create)return 'E';
+    // add missing object id
+    hide(it, ID, ++id);
+  // return object id with prefix
+  } return 'O' + it[ID];
+};
+
+var getEntry = function(that, key){
+  // fast case
+  var index = fastKey(key), entry;
+  if(index !== 'F')return that._i[index];
+  // frozen object case
+  for(entry = that._f; entry; entry = entry.n){
+    if(entry.k == key)return entry;
+  }
+};
+
+module.exports = {
+  getConstructor: function(wrapper, NAME, IS_MAP, ADDER){
+    var C = wrapper(function(that, iterable){
+      strictNew(that, C, NAME);
+      that._i = $.create(null); // index
+      that._f = undefined;      // first entry
+      that._l = undefined;      // last entry
+      that[SIZE] = 0;           // size
+      if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
+    });
+    require('./$.mix')(C.prototype, {
+      // 23.1.3.1 Map.prototype.clear()
+      // 23.2.3.2 Set.prototype.clear()
+      clear: function clear(){
+        for(var that = this, data = that._i, entry = that._f; entry; entry = entry.n){
+          entry.r = true;
+          if(entry.p)entry.p = entry.p.n = undefined;
+          delete data[entry.i];
+        }
+        that._f = that._l = undefined;
+        that[SIZE] = 0;
+      },
+      // 23.1.3.3 Map.prototype.delete(key)
+      // 23.2.3.4 Set.prototype.delete(value)
+      'delete': function(key){
+        var that  = this
+          , entry = getEntry(that, key);
+        if(entry){
+          var next = entry.n
+            , prev = entry.p;
+          delete that._i[entry.i];
+          entry.r = true;
+          if(prev)prev.n = next;
+          if(next)next.p = prev;
+          if(that._f == entry)that._f = next;
+          if(that._l == entry)that._l = prev;
+          that[SIZE]--;
+        } return !!entry;
+      },
+      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
+      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
+      forEach: function forEach(callbackfn /*, that = undefined */){
+        var f = ctx(callbackfn, arguments[1], 3)
+          , entry;
+        while(entry = entry ? entry.n : this._f){
+          f(entry.v, entry.k, this);
+          // revert to the last existing entry
+          while(entry && entry.r)entry = entry.p;
+        }
+      },
+      // 23.1.3.7 Map.prototype.has(key)
+      // 23.2.3.7 Set.prototype.has(value)
+      has: function has(key){
+        return !!getEntry(this, key);
+      }
+    });
+    if(SUPPORT_DESC)$.setDesc(C.prototype, 'size', {
+      get: function(){
+        return defined(this[SIZE]);
+      }
+    });
+    return C;
+  },
+  def: function(that, key, value){
+    var entry = getEntry(that, key)
+      , prev, index;
+    // change existing entry
+    if(entry){
+      entry.v = value;
+    // create new entry
+    } else {
+      that._l = entry = {
+        i: index = fastKey(key, true), // <- index
+        k: key,                        // <- key
+        v: value,                      // <- value
+        p: prev = that._l,             // <- previous entry
+        n: undefined,                  // <- next entry
+        r: false                       // <- removed
+      };
+      if(!that._f)that._f = entry;
+      if(prev)prev.n = entry;
+      that[SIZE]++;
+      // add to index
+      if(index !== 'F')that._i[index] = entry;
+    } return that;
+  },
+  getEntry: getEntry,
+  setStrong: function(C, NAME, IS_MAP){
+    // add .keys, .values, .entries, [@@iterator]
+    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
+    require('./$.iter-define')(C, NAME, function(iterated, kind){
+      this._t = iterated;  // target
+      this._k = kind;      // kind
+      this._l = undefined; // previous
+    }, function(){
+      var that  = this
+        , kind  = that._k
+        , entry = that._l;
+      // revert to the last existing entry
+      while(entry && entry.r)entry = entry.p;
+      // get next entry
+      if(!that._t || !(that._l = entry = entry ? entry.n : that._t._f)){
+        // or finish the iteration
+        that._t = undefined;
+        return step(1);
+      }
+      // return step by kind
+      if(kind == 'keys'  )return step(0, entry.k);
+      if(kind == 'values')return step(0, entry.v);
+      return step(0, [entry.k, entry.v]);
+    }, IS_MAP ? 'entries' : 'values' , !IS_MAP, true);
+
+    // add [@@species], 23.1.2.2, 23.2.2.2
+    species(C);
+    species(require('./$.core')[NAME]); // for wrapper
+  }
+};
+},{"./$":46,"./$.core":18,"./$.ctx":19,"./$.defined":21,"./$.for-of":28,"./$.has":31,"./$.hide":32,"./$.is-object":38,"./$.iter-define":42,"./$.iter-step":44,"./$.mix":51,"./$.species":64,"./$.strict-new":65,"./$.support-desc":71,"./$.uid":79}],15:[function(require,module,exports){
+// https://github.com/DavidBruant/Map-Set.prototype.toJSON
+var forOf   = require('./$.for-of')
+  , classof = require('./$.classof');
+module.exports = function(NAME){
+  return function toJSON(){
+    if(classof(this) != NAME)throw TypeError(NAME + "#toJSON isn't generic");
+    var arr = [];
+    forOf(this, false, arr.push, arr);
+    return arr;
+  };
+};
+},{"./$.classof":12,"./$.for-of":28}],16:[function(require,module,exports){
+'use strict';
+var hide         = require('./$.hide')
+  , anObject     = require('./$.an-object')
+  , strictNew    = require('./$.strict-new')
+  , forOf        = require('./$.for-of')
+  , method       = require('./$.array-methods')
+  , WEAK         = require('./$.uid')('weak')
+  , isObject     = require('./$.is-object')
+  , $has         = require('./$.has')
+  , isExtensible = Object.isExtensible || isObject
+  , find         = method(5)
+  , findIndex    = method(6)
+  , id           = 0;
+
+// fallback for frozen keys
+var frozenStore = function(that){
+  return that._l || (that._l = new FrozenStore);
+};
+var FrozenStore = function(){
+  this.a = [];
+};
+var findFrozen = function(store, key){
+  return find(store.a, function(it){
+    return it[0] === key;
+  });
+};
+FrozenStore.prototype = {
+  get: function(key){
+    var entry = findFrozen(this, key);
+    if(entry)return entry[1];
+  },
+  has: function(key){
+    return !!findFrozen(this, key);
+  },
+  set: function(key, value){
+    var entry = findFrozen(this, key);
+    if(entry)entry[1] = value;
+    else this.a.push([key, value]);
+  },
+  'delete': function(key){
+    var index = findIndex(this.a, function(it){
+      return it[0] === key;
+    });
+    if(~index)this.a.splice(index, 1);
+    return !!~index;
+  }
+};
+
+module.exports = {
+  getConstructor: function(wrapper, NAME, IS_MAP, ADDER){
+    var C = wrapper(function(that, iterable){
+      strictNew(that, C, NAME);
+      that._i = id++;      // collection id
+      that._l = undefined; // leak store for frozen objects
+      if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
+    });
+    require('./$.mix')(C.prototype, {
+      // 23.3.3.2 WeakMap.prototype.delete(key)
+      // 23.4.3.3 WeakSet.prototype.delete(value)
+      'delete': function(key){
+        if(!isObject(key))return false;
+        if(!isExtensible(key))return frozenStore(this)['delete'](key);
+        return $has(key, WEAK) && $has(key[WEAK], this._i) && delete key[WEAK][this._i];
+      },
+      // 23.3.3.4 WeakMap.prototype.has(key)
+      // 23.4.3.4 WeakSet.prototype.has(value)
+      has: function has(key){
+        if(!isObject(key))return false;
+        if(!isExtensible(key))return frozenStore(this).has(key);
+        return $has(key, WEAK) && $has(key[WEAK], this._i);
+      }
+    });
+    return C;
+  },
+  def: function(that, key, value){
+    if(!isExtensible(anObject(key))){
+      frozenStore(that).set(key, value);
+    } else {
+      $has(key, WEAK) || hide(key, WEAK, {});
+      key[WEAK][that._i] = value;
+    } return that;
+  },
+  frozenStore: frozenStore,
+  WEAK: WEAK
+};
+},{"./$.an-object":8,"./$.array-methods":10,"./$.for-of":28,"./$.has":31,"./$.hide":32,"./$.is-object":38,"./$.mix":51,"./$.strict-new":65,"./$.uid":79}],17:[function(require,module,exports){
+'use strict';
+var global     = require('./$.global')
+  , $def       = require('./$.def')
+  , BUGGY      = require('./$.iter-buggy')
+  , forOf      = require('./$.for-of')
+  , strictNew  = require('./$.strict-new');
+
+module.exports = function(NAME, wrapper, methods, common, IS_MAP, IS_WEAK){
+  var Base  = global[NAME]
+    , C     = Base
+    , ADDER = IS_MAP ? 'set' : 'add'
+    , proto = C && C.prototype
+    , O     = {};
+  var fixMethod = function(KEY){
+    var fn = proto[KEY];
+    require('./$.redef')(proto, KEY,
+      KEY == 'delete' ? function(a){ return fn.call(this, a === 0 ? 0 : a); }
+      : KEY == 'has' ? function has(a){ return fn.call(this, a === 0 ? 0 : a); }
+      : KEY == 'get' ? function get(a){ return fn.call(this, a === 0 ? 0 : a); }
+      : KEY == 'add' ? function add(a){ fn.call(this, a === 0 ? 0 : a); return this; }
+      : function set(a, b){ fn.call(this, a === 0 ? 0 : a, b); return this; }
+    );
+  };
+  if(typeof C != 'function' || !(IS_WEAK || !BUGGY && proto.forEach && proto.entries)){
+    // create collection constructor
+    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
+    require('./$.mix')(C.prototype, methods);
+  } else {
+    var inst  = new C
+      , chain = inst[ADDER](IS_WEAK ? {} : -0, 1)
+      , buggyZero;
+    // wrap for init collections from iterable
+    if(!require('./$.iter-detect')(function(iter){ new C(iter); })){ // eslint-disable-line no-new
+      C = wrapper(function(target, iterable){
+        strictNew(target, C, NAME);
+        var that = new Base;
+        if(iterable != undefined)forOf(iterable, IS_MAP, that[ADDER], that);
+        return that;
+      });
+      C.prototype = proto;
+      proto.constructor = C;
+    }
+    IS_WEAK || inst.forEach(function(val, key){
+      buggyZero = 1 / key === -Infinity;
+    });
+    // fix converting -0 key to +0
+    if(buggyZero){
+      fixMethod('delete');
+      fixMethod('has');
+      IS_MAP && fixMethod('get');
+    }
+    // + fix .add & .set for chaining
+    if(buggyZero || chain !== inst)fixMethod(ADDER);
+    // weak collections should not contains .clear method
+    if(IS_WEAK && proto.clear)delete proto.clear;
+  }
+
+  require('./$.tag')(C, NAME);
+
+  O[NAME] = C;
+  $def($def.G + $def.W + $def.F * (C != Base), O);
+
+  if(!IS_WEAK)common.setStrong(C, NAME, IS_MAP);
+
+  return C;
+};
+},{"./$.def":20,"./$.for-of":28,"./$.global":30,"./$.iter-buggy":39,"./$.iter-detect":43,"./$.mix":51,"./$.redef":58,"./$.strict-new":65,"./$.tag":72}],18:[function(require,module,exports){
+var core = module.exports = {};
+if(typeof __e == 'number')__e = core; // eslint-disable-line no-undef
+},{}],19:[function(require,module,exports){
+// optional / simple context binding
+var aFunction = require('./$.a-function');
+module.exports = function(fn, that, length){
+  aFunction(fn);
+  if(that === undefined)return fn;
+  switch(length){
+    case 1: return function(a){
+      return fn.call(that, a);
+    };
+    case 2: return function(a, b){
+      return fn.call(that, a, b);
+    };
+    case 3: return function(a, b, c){
+      return fn.call(that, a, b, c);
+    };
+  } return function(/* ...args */){
+      return fn.apply(that, arguments);
+    };
+};
+},{"./$.a-function":7}],20:[function(require,module,exports){
+var global     = require('./$.global')
+  , core       = require('./$.core')
+  , hide       = require('./$.hide')
+  , $redef     = require('./$.redef')
+  , PROTOTYPE  = 'prototype';
+var ctx = function(fn, that){
+  return function(){
+    return fn.apply(that, arguments);
+  };
+};
+var $def = function(type, name, source){
+  var key, own, out, exp
+    , isGlobal = type & $def.G
+    , isProto  = type & $def.P
+    , target   = isGlobal ? global : type & $def.S
+        ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE]
+    , exports  = isGlobal ? core : core[name] || (core[name] = {});
+  if(isGlobal)source = name;
+  for(key in source){
+    // contains in native
+    own = !(type & $def.F) && target && key in target;
+    // export native or passed
+    out = (own ? target : source)[key];
+    // bind timers to global for call from export context
+    if(type & $def.B && own)exp = ctx(out, global);
+    else exp = isProto && typeof out == 'function' ? ctx(Function.call, out) : out;
+    // extend global
+    if(target && !own)$redef(target, key, out);
+    // export
+    if(exports[key] != out)hide(exports, key, exp);
+    if(isProto)(exports[PROTOTYPE] || (exports[PROTOTYPE] = {}))[key] = out;
+  }
+};
+global.core = core;
+// type bitmap
+$def.F = 1;  // forced
+$def.G = 2;  // global
+$def.S = 4;  // static
+$def.P = 8;  // proto
+$def.B = 16; // bind
+$def.W = 32; // wrap
+module.exports = $def;
+},{"./$.core":18,"./$.global":30,"./$.hide":32,"./$.redef":58}],21:[function(require,module,exports){
+// 7.2.1 RequireObjectCoercible(argument)
+module.exports = function(it){
+  if(it == undefined)throw TypeError("Can't call method on  " + it);
+  return it;
+};
+},{}],22:[function(require,module,exports){
+var isObject = require('./$.is-object')
+  , document = require('./$.global').document
+  // in old IE typeof document.createElement is 'object'
+  , is = isObject(document) && isObject(document.createElement);
+module.exports = function(it){
+  return is ? document.createElement(it) : {};
+};
+},{"./$.global":30,"./$.is-object":38}],23:[function(require,module,exports){
+// all enumerable object keys, includes symbols
+var $ = require('./$');
+module.exports = function(it){
+  var keys       = $.getKeys(it)
+    , getSymbols = $.getSymbols;
+  if(getSymbols){
+    var symbols = getSymbols(it)
+      , isEnum  = $.isEnum
+      , i       = 0
+      , key;
+    while(symbols.length > i)if(isEnum.call(it, key = symbols[i++]))keys.push(key);
+  }
+  return keys;
+};
+},{"./$":46}],24:[function(require,module,exports){
+// 20.2.2.14 Math.expm1(x)
+module.exports = Math.expm1 || function expm1(x){
+  return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : Math.exp(x) - 1;
+};
+},{}],25:[function(require,module,exports){
+module.exports = function(exec){
+  try {
+    return !!exec();
+  } catch(e){
+    return true;
+  }
+};
+},{}],26:[function(require,module,exports){
+'use strict';
+module.exports = function(KEY, length, exec){
+  var defined  = require('./$.defined')
+    , SYMBOL   = require('./$.wks')(KEY)
+    , original = ''[KEY];
+  if(require('./$.fails')(function(){
+    var O = {};
+    O[SYMBOL] = function(){ return 7; };
+    return ''[KEY](O) != 7;
+  })){
+    require('./$.redef')(String.prototype, KEY, exec(defined, SYMBOL, original));
+    require('./$.hide')(RegExp.prototype, SYMBOL, length == 2
+      // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
+      // 21.2.5.11 RegExp.prototype[@@split](string, limit)
+      ? function(string, arg){ return original.call(string, this, arg); }
+      // 21.2.5.6 RegExp.prototype[@@match](string)
+      // 21.2.5.9 RegExp.prototype[@@search](string)
+      : function(string){ return original.call(string, this); }
+    );
+  }
+};
+},{"./$.defined":21,"./$.fails":25,"./$.hide":32,"./$.redef":58,"./$.wks":81}],27:[function(require,module,exports){
+'use strict';
+// 21.2.5.3 get RegExp.prototype.flags
+var anObject = require('./$.an-object');
+module.exports = function(){
+  var that   = anObject(this)
+    , result = '';
+  if(that.global)result += 'g';
+  if(that.ignoreCase)result += 'i';
+  if(that.multiline)result += 'm';
+  if(that.unicode)result += 'u';
+  if(that.sticky)result += 'y';
+  return result;
+};
+},{"./$.an-object":8}],28:[function(require,module,exports){
+var ctx         = require('./$.ctx')
+  , call        = require('./$.iter-call')
+  , isArrayIter = require('./$.is-array-iter')
+  , anObject    = require('./$.an-object')
+  , toLength    = require('./$.to-length')
+  , getIterFn   = require('./core.get-iterator-method');
+module.exports = function(iterable, entries, fn, that){
+  var iterFn = getIterFn(iterable)
+    , f      = ctx(fn, that, entries ? 2 : 1)
+    , index  = 0
+    , length, step, iterator;
+  if(typeof iterFn != 'function')throw TypeError(iterable + ' is not iterable!');
+  // fast case for arrays with default iterator
+  if(isArrayIter(iterFn))for(length = toLength(iterable.length); length > index; index++){
+    entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
+  } else for(iterator = iterFn.call(iterable); !(step = iterator.next()).done; ){
+    call(iterator, f, step.value, entries);
+  }
+};
+},{"./$.an-object":8,"./$.ctx":19,"./$.is-array-iter":36,"./$.iter-call":40,"./$.to-length":77,"./core.get-iterator-method":82}],29:[function(require,module,exports){
+// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
+var toString  = {}.toString
+  , toIObject = require('./$.to-iobject')
+  , getNames  = require('./$').getNames;
+
+var windowNames = typeof window == 'object' && Object.getOwnPropertyNames
+  ? Object.getOwnPropertyNames(window) : [];
+
+var getWindowNames = function(it){
+  try {
+    return getNames(it);
+  } catch(e){
+    return windowNames.slice();
+  }
+};
+
+module.exports.get = function getOwnPropertyNames(it){
+  if(windowNames && toString.call(it) == '[object Window]')return getWindowNames(it);
+  return getNames(toIObject(it));
+};
+},{"./$":46,"./$.to-iobject":76}],30:[function(require,module,exports){
+var global = typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
+module.exports = global;
+if(typeof __g == 'number')__g = global; // eslint-disable-line no-undef
+},{}],31:[function(require,module,exports){
+var hasOwnProperty = {}.hasOwnProperty;
+module.exports = function(it, key){
+  return hasOwnProperty.call(it, key);
+};
+},{}],32:[function(require,module,exports){
+var $          = require('./$')
+  , createDesc = require('./$.property-desc');
+module.exports = require('./$.support-desc') ? function(object, key, value){
+  return $.setDesc(object, key, createDesc(1, value));
+} : function(object, key, value){
+  object[key] = value;
+  return object;
+};
+},{"./$":46,"./$.property-desc":57,"./$.support-desc":71}],33:[function(require,module,exports){
+module.exports = require('./$.global').document && document.documentElement;
+},{"./$.global":30}],34:[function(require,module,exports){
+// fast apply, http://jsperf.lnkit.com/fast-apply/5
+module.exports = function(fn, args, that){
+  var un = that === undefined;
+  switch(args.length){
+    case 0: return un ? fn()
+                      : fn.call(that);
+    case 1: return un ? fn(args[0])
+                      : fn.call(that, args[0]);
+    case 2: return un ? fn(args[0], args[1])
+                      : fn.call(that, args[0], args[1]);
+    case 3: return un ? fn(args[0], args[1], args[2])
+                      : fn.call(that, args[0], args[1], args[2]);
+    case 4: return un ? fn(args[0], args[1], args[2], args[3])
+                      : fn.call(that, args[0], args[1], args[2], args[3]);
+  } return              fn.apply(that, args);
+};
+},{}],35:[function(require,module,exports){
+// indexed object, fallback for non-array-like ES3 strings
+var cof = require('./$.cof');
+module.exports = 0 in Object('z') ? Object : function(it){
+  return cof(it) == 'String' ? it.split('') : Object(it);
+};
+},{"./$.cof":13}],36:[function(require,module,exports){
+// check on default Array iterator
+var Iterators = require('./$.iterators')
+  , ITERATOR  = require('./$.wks')('iterator');
+module.exports = function(it){
+  return (Iterators.Array || Array.prototype[ITERATOR]) === it;
+};
+},{"./$.iterators":45,"./$.wks":81}],37:[function(require,module,exports){
+// 20.1.2.3 Number.isInteger(number)
+var isObject = require('./$.is-object')
+  , floor    = Math.floor;
+module.exports = function isInteger(it){
+  return !isObject(it) && isFinite(it) && floor(it) === it;
+};
+},{"./$.is-object":38}],38:[function(require,module,exports){
+// http://jsperf.com/core-js-isobject
+module.exports = function(it){
+  return it !== null && (typeof it == 'object' || typeof it == 'function');
+};
+},{}],39:[function(require,module,exports){
+// Safari has buggy iterators w/o `next`
+module.exports = 'keys' in [] && !('next' in [].keys());
+},{}],40:[function(require,module,exports){
+// call something on iterator step with safe closing on error
+var anObject = require('./$.an-object');
+module.exports = function(iterator, fn, value, entries){
+  try {
+    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
+  // 7.4.6 IteratorClose(iterator, completion)
+  } catch(e){
+    var ret = iterator['return'];
+    if(ret !== undefined)anObject(ret.call(iterator));
+    throw e;
+  }
+};
+},{"./$.an-object":8}],41:[function(require,module,exports){
+'use strict';
+var $ = require('./$')
+  , IteratorPrototype = {};
+
+// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
+require('./$.hide')(IteratorPrototype, require('./$.wks')('iterator'), function(){ return this; });
+
+module.exports = function(Constructor, NAME, next){
+  Constructor.prototype = $.create(IteratorPrototype, {next: require('./$.property-desc')(1,next)});
+  require('./$.tag')(Constructor, NAME + ' Iterator');
+};
+},{"./$":46,"./$.hide":32,"./$.property-desc":57,"./$.tag":72,"./$.wks":81}],42:[function(require,module,exports){
+'use strict';
+var LIBRARY         = require('./$.library')
+  , $def            = require('./$.def')
+  , $redef          = require('./$.redef')
+  , hide            = require('./$.hide')
+  , has             = require('./$.has')
+  , SYMBOL_ITERATOR = require('./$.wks')('iterator')
+  , Iterators       = require('./$.iterators')
+  , FF_ITERATOR     = '@@iterator'
+  , KEYS            = 'keys'
+  , VALUES          = 'values';
+var returnThis = function(){ return this; };
+module.exports = function(Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCE){
+  require('./$.iter-create')(Constructor, NAME, next);
+  var createMethod = function(kind){
+    switch(kind){
+      case KEYS: return function keys(){ return new Constructor(this, kind); };
+      case VALUES: return function values(){ return new Constructor(this, kind); };
+    } return function entries(){ return new Constructor(this, kind); };
+  };
+  var TAG      = NAME + ' Iterator'
+    , proto    = Base.prototype
+    , _native  = proto[SYMBOL_ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT]
+    , _default = _native || createMethod(DEFAULT)
+    , methods, key;
+  // Fix native
+  if(_native){
+    var IteratorPrototype = require('./$').getProto(_default.call(new Base));
+    // Set @@toStringTag to native iterators
+    require('./$.tag')(IteratorPrototype, TAG, true);
+    // FF fix
+    if(!LIBRARY && has(proto, FF_ITERATOR))hide(IteratorPrototype, SYMBOL_ITERATOR, returnThis);
+  }
+  // Define iterator
+  if(!LIBRARY || FORCE)hide(proto, SYMBOL_ITERATOR, _default);
+  // Plug for library
+  Iterators[NAME] = _default;
+  Iterators[TAG]  = returnThis;
+  if(DEFAULT){
+    methods = {
+      keys:    IS_SET            ? _default : createMethod(KEYS),
+      values:  DEFAULT == VALUES ? _default : createMethod(VALUES),
+      entries: DEFAULT != VALUES ? _default : createMethod('entries')
+    };
+    if(FORCE)for(key in methods){
+      if(!(key in proto))$redef(proto, key, methods[key]);
+    } else $def($def.P + $def.F * require('./$.iter-buggy'), NAME, methods);
+  }
+};
+},{"./$":46,"./$.def":20,"./$.has":31,"./$.hide":32,"./$.iter-buggy":39,"./$.iter-create":41,"./$.iterators":45,"./$.library":48,"./$.redef":58,"./$.tag":72,"./$.wks":81}],43:[function(require,module,exports){
+var SYMBOL_ITERATOR = require('./$.wks')('iterator')
+  , SAFE_CLOSING    = false;
+try {
+  var riter = [7][SYMBOL_ITERATOR]();
+  riter['return'] = function(){ SAFE_CLOSING = true; };
+  Array.from(riter, function(){ throw 2; });
+} catch(e){ /* empty */ }
+module.exports = function(exec){
+  if(!SAFE_CLOSING)return false;
+  var safe = false;
+  try {
+    var arr  = [7]
+      , iter = arr[SYMBOL_ITERATOR]();
+    iter.next = function(){ safe = true; };
+    arr[SYMBOL_ITERATOR] = function(){ return iter; };
+    exec(arr);
+  } catch(e){ /* empty */ }
+  return safe;
+};
+},{"./$.wks":81}],44:[function(require,module,exports){
+module.exports = function(done, value){
+  return {value: value, done: !!done};
+};
+},{}],45:[function(require,module,exports){
+module.exports = {};
+},{}],46:[function(require,module,exports){
+var $Object = Object;
+module.exports = {
+  create:     $Object.create,
+  getProto:   $Object.getPrototypeOf,
+  isEnum:     {}.propertyIsEnumerable,
+  getDesc:    $Object.getOwnPropertyDescriptor,
+  setDesc:    $Object.defineProperty,
+  setDescs:   $Object.defineProperties,
+  getKeys:    $Object.keys,
+  getNames:   $Object.getOwnPropertyNames,
+  getSymbols: $Object.getOwnPropertySymbols,
+  each:       [].forEach
+};
+},{}],47:[function(require,module,exports){
+var $         = require('./$')
+  , toIObject = require('./$.to-iobject');
+module.exports = function(object, el){
+  var O      = toIObject(object)
+    , keys   = $.getKeys(O)
+    , length = keys.length
+    , index  = 0
+    , key;
+  while(length > index)if(O[key = keys[index++]] === el)return key;
+};
+},{"./$":46,"./$.to-iobject":76}],48:[function(require,module,exports){
+module.exports = false;
+},{}],49:[function(require,module,exports){
 // 20.2.2.20 Math.log1p(x)
 module.exports = Math.log1p || function log1p(x){
   return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : Math.log(1 + x);
-};
-},{}],50:[function(require,module,exports){
+};
+},{}],50:[function(require,module,exports){
 var global    = require('./$.global')
   , macrotask = require('./$.task').set
   , Observer  = global.MutationObserver || global.WebKitMutationObserver
@@ -1767,3319 +1767,3319 @@ module.exports = function asap(fn){
     head = task;
     notify();
   } last = task;
-};
-},{"./$.cof":13,"./$.global":30,"./$.task":73}],51:[function(require,module,exports){
-var $redef = require('./$.redef');
-module.exports = function(target, src){
-  for(var key in src)$redef(target, key, src[key]);
-  return target;
-};
-},{"./$.redef":58}],52:[function(require,module,exports){
-// most Object methods by ES6 should accept primitives
-module.exports = function(KEY, exec){
-  var $def = require('./$.def')
-    , fn   = (require('./$.core').Object || {})[KEY] || Object[KEY]
-    , exp  = {};
-  exp[KEY] = exec(fn);
-  $def($def.S + $def.F * require('./$.fails')(function(){ fn(1); }), 'Object', exp);
-};
-},{"./$.core":18,"./$.def":20,"./$.fails":25}],53:[function(require,module,exports){
-var $         = require('./$')
-  , toIObject = require('./$.to-iobject');
-module.exports = function(isEntries){
-  return function(it){
-    var O      = toIObject(it)
-      , keys   = $.getKeys(O)
-      , length = keys.length
-      , i      = 0
-      , result = Array(length)
-      , key;
-    if(isEntries)while(length > i)result[i] = [key = keys[i++], O[key]];
-    else while(length > i)result[i] = O[keys[i++]];
-    return result;
-  };
-};
-},{"./$":46,"./$.to-iobject":76}],54:[function(require,module,exports){
-// all object keys, includes non-enumerable and symbols
-var $        = require('./$')
-  , anObject = require('./$.an-object');
-module.exports = function ownKeys(it){
-  var keys       = $.getNames(anObject(it))
-    , getSymbols = $.getSymbols;
-  return getSymbols ? keys.concat(getSymbols(it)) : keys;
-};
-},{"./$":46,"./$.an-object":8}],55:[function(require,module,exports){
-'use strict';
-var path      = require('./$.path')
-  , invoke    = require('./$.invoke')
-  , aFunction = require('./$.a-function');
-module.exports = function(/* ...pargs */){
-  var fn     = aFunction(this)
-    , length = arguments.length
-    , pargs  = Array(length)
-    , i      = 0
-    , _      = path._
-    , holder = false;
-  while(length > i)if((pargs[i] = arguments[i++]) === _)holder = true;
-  return function(/* ...args */){
-    var that    = this
-      , _length = arguments.length
-      , j = 0, k = 0, args;
-    if(!holder && !_length)return invoke(fn, pargs, that);
-    args = pargs.slice();
-    if(holder)for(;length > j; j++)if(args[j] === _)args[j] = arguments[k++];
-    while(_length > k)args.push(arguments[k++]);
-    return invoke(fn, args, that);
-  };
-};
-},{"./$.a-function":7,"./$.invoke":34,"./$.path":56}],56:[function(require,module,exports){
-module.exports = require('./$.global');
-},{"./$.global":30}],57:[function(require,module,exports){
-module.exports = function(bitmap, value){
-  return {
-    enumerable  : !(bitmap & 1),
-    configurable: !(bitmap & 2),
-    writable    : !(bitmap & 4),
-    value       : value
-  };
-};
-},{}],58:[function(require,module,exports){
-// add fake Function#toString
-// for correct work wrapped methods / constructors with methods like LoDash isNative
-var global    = require('./$.global')
-  , hide      = require('./$.hide')
-  , SRC       = require('./$.uid')('src')
-  , TO_STRING = 'toString'
-  , $toString = Function[TO_STRING]
-  , TPL       = ('' + $toString).split(TO_STRING);
-
-require('./$.core').inspectSource = function(it){
-  return $toString.call(it);
-};
-
-(module.exports = function(O, key, val, safe){
-  if(typeof val == 'function'){
-    hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
-    if(!('name' in val))val.name = key;
-  }
-  if(O === global){
-    O[key] = val;
-  } else {
-    if(!safe)delete O[key];
-    hide(O, key, val);
-  }
-})(Function.prototype, TO_STRING, function toString(){
-  return typeof this == 'function' && this[SRC] || $toString.call(this);
-});
-},{"./$.core":18,"./$.global":30,"./$.hide":32,"./$.uid":79}],59:[function(require,module,exports){
-module.exports = function(regExp, replace){
-  var replacer = replace === Object(replace) ? function(part){
-    return replace[part];
-  } : replace;
-  return function(it){
-    return String(it).replace(regExp, replacer);
-  };
-};
-},{}],60:[function(require,module,exports){
-module.exports = Object.is || function is(x, y){
-  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
-};
-},{}],61:[function(require,module,exports){
-// Works with __proto__ only. Old v8 can't work with null proto objects.
-/* eslint-disable no-proto */
-var getDesc  = require('./$').getDesc
-  , isObject = require('./$.is-object')
-  , anObject = require('./$.an-object');
-var check = function(O, proto){
-  anObject(O);
-  if(!isObject(proto) && proto !== null)throw TypeError(proto + ": can't set as prototype!");
-};
-module.exports = {
-  set: Object.setPrototypeOf || ('__proto__' in {} // eslint-disable-line
-    ? function(buggy, set){
-        try {
-          set = require('./$.ctx')(Function.call, getDesc(Object.prototype, '__proto__').set, 2);
-          set({}, []);
-        } catch(e){ buggy = true; }
-        return function setPrototypeOf(O, proto){
-          check(O, proto);
-          if(buggy)O.__proto__ = proto;
-          else set(O, proto);
-          return O;
-        };
-      }()
-    : undefined),
-  check: check
-};
-},{"./$":46,"./$.an-object":8,"./$.ctx":19,"./$.is-object":38}],62:[function(require,module,exports){
-var global = require('./$.global')
-  , SHARED = '__core-js_shared__'
-  , store  = global[SHARED] || (global[SHARED] = {});
-module.exports = function(key){
-  return store[key] || (store[key] = {});
-};
-},{"./$.global":30}],63:[function(require,module,exports){
-// 20.2.2.28 Math.sign(x)
-module.exports = Math.sign || function sign(x){
-  return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
-};
-},{}],64:[function(require,module,exports){
-'use strict';
-var $       = require('./$')
-  , SPECIES = require('./$.wks')('species');
-module.exports = function(C){
-  if(require('./$.support-desc') && !(SPECIES in C))$.setDesc(C, SPECIES, {
-    configurable: true,
-    get: function(){ return this; }
-  });
-};
-},{"./$":46,"./$.support-desc":71,"./$.wks":81}],65:[function(require,module,exports){
-module.exports = function(it, Constructor, name){
-  if(!(it instanceof Constructor))throw TypeError(name + ": use the 'new' operator!");
-  return it;
-};
-},{}],66:[function(require,module,exports){
-// true  -> String#at
-// false -> String#codePointAt
-var toInteger = require('./$.to-integer')
-  , defined   = require('./$.defined');
-module.exports = function(TO_STRING){
-  return function(that, pos){
-    var s = String(defined(that))
-      , i = toInteger(pos)
-      , l = s.length
-      , a, b;
-    if(i < 0 || i >= l)return TO_STRING ? '' : undefined;
-    a = s.charCodeAt(i);
-    return a < 0xd800 || a > 0xdbff || i + 1 === l
-      || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
-        ? TO_STRING ? s.charAt(i) : a
-        : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
-  };
-};
-},{"./$.defined":21,"./$.to-integer":75}],67:[function(require,module,exports){
-// helper for String#{startsWith, endsWith, includes}
-var defined = require('./$.defined')
-  , cof     = require('./$.cof');
-
-module.exports = function(that, searchString, NAME){
-  if(cof(searchString) == 'RegExp')throw TypeError('String#' + NAME + " doesn't accept regex!");
-  return String(defined(that));
-};
-},{"./$.cof":13,"./$.defined":21}],68:[function(require,module,exports){
-// https://github.com/ljharb/proposal-string-pad-left-right
-var toLength = require('./$.to-length')
-  , repeat   = require('./$.string-repeat')
-  , defined  = require('./$.defined');
-
-module.exports = function(that, maxLength, fillString, left){
-  var S            = String(defined(that))
-    , stringLength = S.length
-    , fillStr      = fillString === undefined ? ' ' : String(fillString)
-    , intMaxLength = toLength(maxLength);
-  if(intMaxLength <= stringLength)return S;
-  if(fillStr == '')fillStr = ' ';
-  var fillLen = intMaxLength - stringLength
-    , stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
-  if(stringFiller.length > fillLen)stringFiller = left
-    ? stringFiller.slice(stringFiller.length - fillLen)
-    : stringFiller.slice(0, fillLen);
-  return left ? stringFiller + S : S + stringFiller;
-};
-},{"./$.defined":21,"./$.string-repeat":69,"./$.to-length":77}],69:[function(require,module,exports){
-'use strict';
-var toInteger = require('./$.to-integer')
-  , defined   = require('./$.defined');
-
-module.exports = function repeat(count){
-  var str = String(defined(this))
-    , res = ''
-    , n   = toInteger(count);
-  if(n < 0 || n == Infinity)throw RangeError("Count can't be negative");
-  for(;n > 0; (n >>>= 1) && (str += str))if(n & 1)res += str;
-  return res;
-};
-},{"./$.defined":21,"./$.to-integer":75}],70:[function(require,module,exports){
-// 1 -> String#trimLeft
-// 2 -> String#trimRight
-// 3 -> String#trim
-var trim = function(string, TYPE){
-  string = String(defined(string));
-  if(TYPE & 1)string = string.replace(ltrim, '');
-  if(TYPE & 2)string = string.replace(rtrim, '');
-  return string;
-};
-
-var $def    = require('./$.def')
-  , defined = require('./$.defined')
-  , spaces  = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
-      '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF'
-  , space   = '[' + spaces + ']'
-  , non     = '\u200b\u0085'
-  , ltrim   = RegExp('^' + space + space + '*')
-  , rtrim   = RegExp(space + space + '*$');
-
-module.exports = function(KEY, exec){
-  var exp  = {};
-  exp[KEY] = exec(trim);
-  $def($def.P + $def.F * require('./$.fails')(function(){
-    return !!spaces[KEY]() || non[KEY]() != non;
-  }), 'String', exp);
-};
-},{"./$.def":20,"./$.defined":21,"./$.fails":25}],71:[function(require,module,exports){
-// Thank's IE8 for his funny defineProperty
-module.exports = !require('./$.fails')(function(){
-  return Object.defineProperty({}, 'a', {get: function(){ return 7; }}).a != 7;
-});
-},{"./$.fails":25}],72:[function(require,module,exports){
-var has  = require('./$.has')
-  , hide = require('./$.hide')
-  , TAG  = require('./$.wks')('toStringTag');
-
-module.exports = function(it, tag, stat){
-  if(it && !has(it = stat ? it : it.prototype, TAG))hide(it, TAG, tag);
-};
-},{"./$.has":31,"./$.hide":32,"./$.wks":81}],73:[function(require,module,exports){
-'use strict';
-var ctx                = require('./$.ctx')
-  , invoke             = require('./$.invoke')
-  , html               = require('./$.html')
-  , cel                = require('./$.dom-create')
-  , global             = require('./$.global')
-  , process            = global.process
-  , setTask            = global.setImmediate
-  , clearTask          = global.clearImmediate
-  , MessageChannel     = global.MessageChannel
-  , counter            = 0
-  , queue              = {}
-  , ONREADYSTATECHANGE = 'onreadystatechange'
-  , defer, channel, port;
-var run = function(){
-  var id = +this;
-  if(queue.hasOwnProperty(id)){
-    var fn = queue[id];
-    delete queue[id];
-    fn();
-  }
-};
-var listner = function(event){
-  run.call(event.data);
-};
-// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
-if(!setTask || !clearTask){
-  setTask = function setImmediate(fn){
-    var args = [], i = 1;
-    while(arguments.length > i)args.push(arguments[i++]);
-    queue[++counter] = function(){
-      invoke(typeof fn == 'function' ? fn : Function(fn), args);
-    };
-    defer(counter);
-    return counter;
-  };
-  clearTask = function clearImmediate(id){
-    delete queue[id];
-  };
-  // Node.js 0.8-
-  if(require('./$.cof')(process) == 'process'){
-    defer = function(id){
-      process.nextTick(ctx(run, id, 1));
-    };
-  // Browsers with MessageChannel, includes WebWorkers
-  } else if(MessageChannel){
-    channel = new MessageChannel;
-    port    = channel.port2;
-    channel.port1.onmessage = listner;
-    defer = ctx(port.postMessage, port, 1);
-  // Browsers with postMessage, skip WebWorkers
-  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
-  } else if(global.addEventListener && typeof postMessage == 'function' && !global.importScript){
-    defer = function(id){
-      global.postMessage(id + '', '*');
-    };
-    global.addEventListener('message', listner, false);
-  // IE8-
-  } else if(ONREADYSTATECHANGE in cel('script')){
-    defer = function(id){
-      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function(){
-        html.removeChild(this);
-        run.call(id);
-      };
-    };
-  // Rest old browsers
-  } else {
-    defer = function(id){
-      setTimeout(ctx(run, id, 1), 0);
-    };
-  }
-}
-module.exports = {
-  set:   setTask,
-  clear: clearTask
-};
-},{"./$.cof":13,"./$.ctx":19,"./$.dom-create":22,"./$.global":30,"./$.html":33,"./$.invoke":34}],74:[function(require,module,exports){
-var toInteger = require('./$.to-integer')
-  , max       = Math.max
-  , min       = Math.min;
-module.exports = function(index, length){
-  index = toInteger(index);
-  return index < 0 ? max(index + length, 0) : min(index, length);
-};
-},{"./$.to-integer":75}],75:[function(require,module,exports){
-// 7.1.4 ToInteger
-var ceil  = Math.ceil
-  , floor = Math.floor;
-module.exports = function(it){
-  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
-};
-},{}],76:[function(require,module,exports){
+};
+},{"./$.cof":13,"./$.global":30,"./$.task":73}],51:[function(require,module,exports){
+var $redef = require('./$.redef');
+module.exports = function(target, src){
+  for(var key in src)$redef(target, key, src[key]);
+  return target;
+};
+},{"./$.redef":58}],52:[function(require,module,exports){
+// most Object methods by ES6 should accept primitives
+module.exports = function(KEY, exec){
+  var $def = require('./$.def')
+    , fn   = (require('./$.core').Object || {})[KEY] || Object[KEY]
+    , exp  = {};
+  exp[KEY] = exec(fn);
+  $def($def.S + $def.F * require('./$.fails')(function(){ fn(1); }), 'Object', exp);
+};
+},{"./$.core":18,"./$.def":20,"./$.fails":25}],53:[function(require,module,exports){
+var $         = require('./$')
+  , toIObject = require('./$.to-iobject');
+module.exports = function(isEntries){
+  return function(it){
+    var O      = toIObject(it)
+      , keys   = $.getKeys(O)
+      , length = keys.length
+      , i      = 0
+      , result = Array(length)
+      , key;
+    if(isEntries)while(length > i)result[i] = [key = keys[i++], O[key]];
+    else while(length > i)result[i] = O[keys[i++]];
+    return result;
+  };
+};
+},{"./$":46,"./$.to-iobject":76}],54:[function(require,module,exports){
+// all object keys, includes non-enumerable and symbols
+var $        = require('./$')
+  , anObject = require('./$.an-object');
+module.exports = function ownKeys(it){
+  var keys       = $.getNames(anObject(it))
+    , getSymbols = $.getSymbols;
+  return getSymbols ? keys.concat(getSymbols(it)) : keys;
+};
+},{"./$":46,"./$.an-object":8}],55:[function(require,module,exports){
+'use strict';
+var path      = require('./$.path')
+  , invoke    = require('./$.invoke')
+  , aFunction = require('./$.a-function');
+module.exports = function(/* ...pargs */){
+  var fn     = aFunction(this)
+    , length = arguments.length
+    , pargs  = Array(length)
+    , i      = 0
+    , _      = path._
+    , holder = false;
+  while(length > i)if((pargs[i] = arguments[i++]) === _)holder = true;
+  return function(/* ...args */){
+    var that    = this
+      , _length = arguments.length
+      , j = 0, k = 0, args;
+    if(!holder && !_length)return invoke(fn, pargs, that);
+    args = pargs.slice();
+    if(holder)for(;length > j; j++)if(args[j] === _)args[j] = arguments[k++];
+    while(_length > k)args.push(arguments[k++]);
+    return invoke(fn, args, that);
+  };
+};
+},{"./$.a-function":7,"./$.invoke":34,"./$.path":56}],56:[function(require,module,exports){
+module.exports = require('./$.global');
+},{"./$.global":30}],57:[function(require,module,exports){
+module.exports = function(bitmap, value){
+  return {
+    enumerable  : !(bitmap & 1),
+    configurable: !(bitmap & 2),
+    writable    : !(bitmap & 4),
+    value       : value
+  };
+};
+},{}],58:[function(require,module,exports){
+// add fake Function#toString
+// for correct work wrapped methods / constructors with methods like LoDash isNative
+var global    = require('./$.global')
+  , hide      = require('./$.hide')
+  , SRC       = require('./$.uid')('src')
+  , TO_STRING = 'toString'
+  , $toString = Function[TO_STRING]
+  , TPL       = ('' + $toString).split(TO_STRING);
+
+require('./$.core').inspectSource = function(it){
+  return $toString.call(it);
+};
+
+(module.exports = function(O, key, val, safe){
+  if(typeof val == 'function'){
+    hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
+    if(!('name' in val))val.name = key;
+  }
+  if(O === global){
+    O[key] = val;
+  } else {
+    if(!safe)delete O[key];
+    hide(O, key, val);
+  }
+})(Function.prototype, TO_STRING, function toString(){
+  return typeof this == 'function' && this[SRC] || $toString.call(this);
+});
+},{"./$.core":18,"./$.global":30,"./$.hide":32,"./$.uid":79}],59:[function(require,module,exports){
+module.exports = function(regExp, replace){
+  var replacer = replace === Object(replace) ? function(part){
+    return replace[part];
+  } : replace;
+  return function(it){
+    return String(it).replace(regExp, replacer);
+  };
+};
+},{}],60:[function(require,module,exports){
+module.exports = Object.is || function is(x, y){
+  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
+};
+},{}],61:[function(require,module,exports){
+// Works with __proto__ only. Old v8 can't work with null proto objects.
+/* eslint-disable no-proto */
+var getDesc  = require('./$').getDesc
+  , isObject = require('./$.is-object')
+  , anObject = require('./$.an-object');
+var check = function(O, proto){
+  anObject(O);
+  if(!isObject(proto) && proto !== null)throw TypeError(proto + ": can't set as prototype!");
+};
+module.exports = {
+  set: Object.setPrototypeOf || ('__proto__' in {} // eslint-disable-line
+    ? function(buggy, set){
+        try {
+          set = require('./$.ctx')(Function.call, getDesc(Object.prototype, '__proto__').set, 2);
+          set({}, []);
+        } catch(e){ buggy = true; }
+        return function setPrototypeOf(O, proto){
+          check(O, proto);
+          if(buggy)O.__proto__ = proto;
+          else set(O, proto);
+          return O;
+        };
+      }()
+    : undefined),
+  check: check
+};
+},{"./$":46,"./$.an-object":8,"./$.ctx":19,"./$.is-object":38}],62:[function(require,module,exports){
+var global = require('./$.global')
+  , SHARED = '__core-js_shared__'
+  , store  = global[SHARED] || (global[SHARED] = {});
+module.exports = function(key){
+  return store[key] || (store[key] = {});
+};
+},{"./$.global":30}],63:[function(require,module,exports){
+// 20.2.2.28 Math.sign(x)
+module.exports = Math.sign || function sign(x){
+  return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
+};
+},{}],64:[function(require,module,exports){
+'use strict';
+var $       = require('./$')
+  , SPECIES = require('./$.wks')('species');
+module.exports = function(C){
+  if(require('./$.support-desc') && !(SPECIES in C))$.setDesc(C, SPECIES, {
+    configurable: true,
+    get: function(){ return this; }
+  });
+};
+},{"./$":46,"./$.support-desc":71,"./$.wks":81}],65:[function(require,module,exports){
+module.exports = function(it, Constructor, name){
+  if(!(it instanceof Constructor))throw TypeError(name + ": use the 'new' operator!");
+  return it;
+};
+},{}],66:[function(require,module,exports){
+// true  -> String#at
+// false -> String#codePointAt
+var toInteger = require('./$.to-integer')
+  , defined   = require('./$.defined');
+module.exports = function(TO_STRING){
+  return function(that, pos){
+    var s = String(defined(that))
+      , i = toInteger(pos)
+      , l = s.length
+      , a, b;
+    if(i < 0 || i >= l)return TO_STRING ? '' : undefined;
+    a = s.charCodeAt(i);
+    return a < 0xd800 || a > 0xdbff || i + 1 === l
+      || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+        ? TO_STRING ? s.charAt(i) : a
+        : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+  };
+};
+},{"./$.defined":21,"./$.to-integer":75}],67:[function(require,module,exports){
+// helper for String#{startsWith, endsWith, includes}
+var defined = require('./$.defined')
+  , cof     = require('./$.cof');
+
+module.exports = function(that, searchString, NAME){
+  if(cof(searchString) == 'RegExp')throw TypeError('String#' + NAME + " doesn't accept regex!");
+  return String(defined(that));
+};
+},{"./$.cof":13,"./$.defined":21}],68:[function(require,module,exports){
+// https://github.com/ljharb/proposal-string-pad-left-right
+var toLength = require('./$.to-length')
+  , repeat   = require('./$.string-repeat')
+  , defined  = require('./$.defined');
+
+module.exports = function(that, maxLength, fillString, left){
+  var S            = String(defined(that))
+    , stringLength = S.length
+    , fillStr      = fillString === undefined ? ' ' : String(fillString)
+    , intMaxLength = toLength(maxLength);
+  if(intMaxLength <= stringLength)return S;
+  if(fillStr == '')fillStr = ' ';
+  var fillLen = intMaxLength - stringLength
+    , stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
+  if(stringFiller.length > fillLen)stringFiller = left
+    ? stringFiller.slice(stringFiller.length - fillLen)
+    : stringFiller.slice(0, fillLen);
+  return left ? stringFiller + S : S + stringFiller;
+};
+},{"./$.defined":21,"./$.string-repeat":69,"./$.to-length":77}],69:[function(require,module,exports){
+'use strict';
+var toInteger = require('./$.to-integer')
+  , defined   = require('./$.defined');
+
+module.exports = function repeat(count){
+  var str = String(defined(this))
+    , res = ''
+    , n   = toInteger(count);
+  if(n < 0 || n == Infinity)throw RangeError("Count can't be negative");
+  for(;n > 0; (n >>>= 1) && (str += str))if(n & 1)res += str;
+  return res;
+};
+},{"./$.defined":21,"./$.to-integer":75}],70:[function(require,module,exports){
+// 1 -> String#trimLeft
+// 2 -> String#trimRight
+// 3 -> String#trim
+var trim = function(string, TYPE){
+  string = String(defined(string));
+  if(TYPE & 1)string = string.replace(ltrim, '');
+  if(TYPE & 2)string = string.replace(rtrim, '');
+  return string;
+};
+
+var $def    = require('./$.def')
+  , defined = require('./$.defined')
+  , spaces  = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
+      '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF'
+  , space   = '[' + spaces + ']'
+  , non     = '\u200b\u0085'
+  , ltrim   = RegExp('^' + space + space + '*')
+  , rtrim   = RegExp(space + space + '*$');
+
+module.exports = function(KEY, exec){
+  var exp  = {};
+  exp[KEY] = exec(trim);
+  $def($def.P + $def.F * require('./$.fails')(function(){
+    return !!spaces[KEY]() || non[KEY]() != non;
+  }), 'String', exp);
+};
+},{"./$.def":20,"./$.defined":21,"./$.fails":25}],71:[function(require,module,exports){
+// Thank's IE8 for his funny defineProperty
+module.exports = !require('./$.fails')(function(){
+  return Object.defineProperty({}, 'a', {get: function(){ return 7; }}).a != 7;
+});
+},{"./$.fails":25}],72:[function(require,module,exports){
+var has  = require('./$.has')
+  , hide = require('./$.hide')
+  , TAG  = require('./$.wks')('toStringTag');
+
+module.exports = function(it, tag, stat){
+  if(it && !has(it = stat ? it : it.prototype, TAG))hide(it, TAG, tag);
+};
+},{"./$.has":31,"./$.hide":32,"./$.wks":81}],73:[function(require,module,exports){
+'use strict';
+var ctx                = require('./$.ctx')
+  , invoke             = require('./$.invoke')
+  , html               = require('./$.html')
+  , cel                = require('./$.dom-create')
+  , global             = require('./$.global')
+  , process            = global.process
+  , setTask            = global.setImmediate
+  , clearTask          = global.clearImmediate
+  , MessageChannel     = global.MessageChannel
+  , counter            = 0
+  , queue              = {}
+  , ONREADYSTATECHANGE = 'onreadystatechange'
+  , defer, channel, port;
+var run = function(){
+  var id = +this;
+  if(queue.hasOwnProperty(id)){
+    var fn = queue[id];
+    delete queue[id];
+    fn();
+  }
+};
+var listner = function(event){
+  run.call(event.data);
+};
+// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
+if(!setTask || !clearTask){
+  setTask = function setImmediate(fn){
+    var args = [], i = 1;
+    while(arguments.length > i)args.push(arguments[i++]);
+    queue[++counter] = function(){
+      invoke(typeof fn == 'function' ? fn : Function(fn), args);
+    };
+    defer(counter);
+    return counter;
+  };
+  clearTask = function clearImmediate(id){
+    delete queue[id];
+  };
+  // Node.js 0.8-
+  if(require('./$.cof')(process) == 'process'){
+    defer = function(id){
+      process.nextTick(ctx(run, id, 1));
+    };
+  // Browsers with MessageChannel, includes WebWorkers
+  } else if(MessageChannel){
+    channel = new MessageChannel;
+    port    = channel.port2;
+    channel.port1.onmessage = listner;
+    defer = ctx(port.postMessage, port, 1);
+  // Browsers with postMessage, skip WebWorkers
+  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
+  } else if(global.addEventListener && typeof postMessage == 'function' && !global.importScript){
+    defer = function(id){
+      global.postMessage(id + '', '*');
+    };
+    global.addEventListener('message', listner, false);
+  // IE8-
+  } else if(ONREADYSTATECHANGE in cel('script')){
+    defer = function(id){
+      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function(){
+        html.removeChild(this);
+        run.call(id);
+      };
+    };
+  // Rest old browsers
+  } else {
+    defer = function(id){
+      setTimeout(ctx(run, id, 1), 0);
+    };
+  }
+}
+module.exports = {
+  set:   setTask,
+  clear: clearTask
+};
+},{"./$.cof":13,"./$.ctx":19,"./$.dom-create":22,"./$.global":30,"./$.html":33,"./$.invoke":34}],74:[function(require,module,exports){
+var toInteger = require('./$.to-integer')
+  , max       = Math.max
+  , min       = Math.min;
+module.exports = function(index, length){
+  index = toInteger(index);
+  return index < 0 ? max(index + length, 0) : min(index, length);
+};
+},{"./$.to-integer":75}],75:[function(require,module,exports){
+// 7.1.4 ToInteger
+var ceil  = Math.ceil
+  , floor = Math.floor;
+module.exports = function(it){
+  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
+};
+},{}],76:[function(require,module,exports){
 // to indexed object, toObject with fallback for non-array-like ES3 strings
 var IObject = require('./$.iobject')
   , defined = require('./$.defined');
 module.exports = function(it){
   return IObject(defined(it));
-};
-},{"./$.defined":21,"./$.iobject":35}],77:[function(require,module,exports){
-// 7.1.15 ToLength
-var toInteger = require('./$.to-integer')
-  , min       = Math.min;
-module.exports = function(it){
-  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
-};
-},{"./$.to-integer":75}],78:[function(require,module,exports){
-// 7.1.13 ToObject(argument)
-var defined = require('./$.defined');
-module.exports = function(it){
-  return Object(defined(it));
-};
-},{"./$.defined":21}],79:[function(require,module,exports){
-var id = 0
-  , px = Math.random();
-module.exports = function(key){
-  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
-};
-},{}],80:[function(require,module,exports){
-// 22.1.3.31 Array.prototype[@@unscopables]
-var UNSCOPABLES = require('./$.wks')('unscopables');
-if(!(UNSCOPABLES in []))require('./$.hide')(Array.prototype, UNSCOPABLES, {});
-module.exports = function(key){
-  [][UNSCOPABLES][key] = true;
-};
-},{"./$.hide":32,"./$.wks":81}],81:[function(require,module,exports){
-var store  = require('./$.shared')('wks')
-  , Symbol = require('./$.global').Symbol;
-module.exports = function(name){
-  return store[name] || (store[name] =
-    Symbol && Symbol[name] || (Symbol || require('./$.uid'))('Symbol.' + name));
-};
-},{"./$.global":30,"./$.shared":62,"./$.uid":79}],82:[function(require,module,exports){
-var classof   = require('./$.classof')
-  , ITERATOR  = require('./$.wks')('iterator')
-  , Iterators = require('./$.iterators');
-module.exports = require('./$.core').getIteratorMethod = function(it){
-  if(it != undefined)return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
-};
-},{"./$.classof":12,"./$.core":18,"./$.iterators":45,"./$.wks":81}],83:[function(require,module,exports){
-'use strict';
-var $                = require('./$')
-  , SUPPORT_DESC     = require('./$.support-desc')
-  , createDesc       = require('./$.property-desc')
-  , html             = require('./$.html')
-  , cel              = require('./$.dom-create')
-  , has              = require('./$.has')
-  , cof              = require('./$.cof')
-  , $def             = require('./$.def')
-  , invoke           = require('./$.invoke')
-  , arrayMethod      = require('./$.array-methods')
-  , IE_PROTO         = require('./$.uid')('__proto__')
-  , isObject         = require('./$.is-object')
-  , anObject         = require('./$.an-object')
-  , aFunction        = require('./$.a-function')
-  , toObject         = require('./$.to-object')
-  , toIObject        = require('./$.to-iobject')
-  , toInteger        = require('./$.to-integer')
-  , toIndex          = require('./$.to-index')
-  , toLength         = require('./$.to-length')
-  , IObject          = require('./$.iobject')
-  , fails            = require('./$.fails')
-  , ObjectProto      = Object.prototype
-  , A                = []
-  , _slice           = A.slice
-  , _join            = A.join
-  , defineProperty   = $.setDesc
-  , getOwnDescriptor = $.getDesc
-  , defineProperties = $.setDescs
-  , $indexOf         = require('./$.array-includes')(false)
-  , factories        = {}
-  , IE8_DOM_DEFINE;
-
-if(!SUPPORT_DESC){
-  IE8_DOM_DEFINE = !fails(function(){
-    return defineProperty(cel('div'), 'a', {get: function(){ return 7; }}).a != 7;
-  });
-  $.setDesc = function(O, P, Attributes){
-    if(IE8_DOM_DEFINE)try {
-      return defineProperty(O, P, Attributes);
-    } catch(e){ /* empty */ }
-    if('get' in Attributes || 'set' in Attributes)throw TypeError('Accessors not supported!');
-    if('value' in Attributes)anObject(O)[P] = Attributes.value;
-    return O;
-  };
-  $.getDesc = function(O, P){
-    if(IE8_DOM_DEFINE)try {
-      return getOwnDescriptor(O, P);
-    } catch(e){ /* empty */ }
-    if(has(O, P))return createDesc(!ObjectProto.propertyIsEnumerable.call(O, P), O[P]);
-  };
-  $.setDescs = defineProperties = function(O, Properties){
-    anObject(O);
-    var keys   = $.getKeys(Properties)
-      , length = keys.length
-      , i = 0
-      , P;
-    while(length > i)$.setDesc(O, P = keys[i++], Properties[P]);
-    return O;
-  };
-}
-$def($def.S + $def.F * !SUPPORT_DESC, 'Object', {
-  // 19.1.2.6 / 15.2.3.3 Object.getOwnPropertyDescriptor(O, P)
-  getOwnPropertyDescriptor: $.getDesc,
-  // 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)
-  defineProperty: $.setDesc,
-  // 19.1.2.3 / 15.2.3.7 Object.defineProperties(O, Properties)
-  defineProperties: defineProperties
-});
-
-  // IE 8- don't enum bug keys
-var keys1 = ('constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,' +
-            'toLocaleString,toString,valueOf').split(',')
-  // Additional keys for getOwnPropertyNames
-  , keys2 = keys1.concat('length', 'prototype')
-  , keysLen1 = keys1.length;
-
-// Create object with `null` prototype: use iframe Object with cleared prototype
-var createDict = function(){
-  // Thrash, waste and sodomy: IE GC bug
-  var iframe = cel('iframe')
-    , i      = keysLen1
-    , gt     = '>'
-    , iframeDocument;
-  iframe.style.display = 'none';
-  html.appendChild(iframe);
-  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
-  // createDict = iframe.contentWindow.Object;
-  // html.removeChild(iframe);
-  iframeDocument = iframe.contentWindow.document;
-  iframeDocument.open();
-  iframeDocument.write('<script>document.F=Object</script' + gt);
-  iframeDocument.close();
-  createDict = iframeDocument.F;
-  while(i--)delete createDict.prototype[keys1[i]];
-  return createDict();
-};
-var createGetKeys = function(names, length){
-  return function(object){
-    var O      = toIObject(object)
-      , i      = 0
-      , result = []
-      , key;
-    for(key in O)if(key != IE_PROTO)has(O, key) && result.push(key);
-    // Don't enum bug & hidden keys
-    while(length > i)if(has(O, key = names[i++])){
-      ~$indexOf(result, key) || result.push(key);
-    }
-    return result;
-  };
-};
-var Empty = function(){};
-$def($def.S, 'Object', {
-  // 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
-  getPrototypeOf: $.getProto = $.getProto || function(O){
-    O = toObject(O);
-    if(has(O, IE_PROTO))return O[IE_PROTO];
-    if(typeof O.constructor == 'function' && O instanceof O.constructor){
-      return O.constructor.prototype;
-    } return O instanceof Object ? ObjectProto : null;
-  },
-  // 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
-  getOwnPropertyNames: $.getNames = $.getNames || createGetKeys(keys2, keys2.length, true),
-  // 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
-  create: $.create = $.create || function(O, /*?*/Properties){
-    var result;
-    if(O !== null){
-      Empty.prototype = anObject(O);
-      result = new Empty();
-      Empty.prototype = null;
-      // add "__proto__" for Object.getPrototypeOf shim
-      result[IE_PROTO] = O;
-    } else result = createDict();
-    return Properties === undefined ? result : defineProperties(result, Properties);
-  },
-  // 19.1.2.14 / 15.2.3.14 Object.keys(O)
-  keys: $.getKeys = $.getKeys || createGetKeys(keys1, keysLen1, false)
-});
-
-var construct = function(F, len, args){
-  if(!(len in factories)){
-    for(var n = [], i = 0; i < len; i++)n[i] = 'a[' + i + ']';
-    factories[len] = Function('F,a', 'return new F(' + n.join(',') + ')');
-  }
-  return factories[len](F, args);
-};
-
-// 19.2.3.2 / 15.3.4.5 Function.prototype.bind(thisArg, args...)
-$def($def.P, 'Function', {
-  bind: function bind(that /*, args... */){
-    var fn       = aFunction(this)
-      , partArgs = _slice.call(arguments, 1);
-    var bound = function(/* args... */){
-      var args = partArgs.concat(_slice.call(arguments));
-      return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);
-    };
-    if(isObject(fn.prototype))bound.prototype = fn.prototype;
-    return bound;
-  }
-});
-
-// fallback for not array-like ES3 strings and DOM objects
-var buggySlice = fails(function(){
-  if(html)_slice.call(html);
-});
-
-$def($def.P + $def.F * buggySlice, 'Array', {
-  slice: function(begin, end){
-    var len   = toLength(this.length)
-      , klass = cof(this);
-    end = end === undefined ? len : end;
-    if(klass == 'Array')return _slice.call(this, begin, end);
-    var start  = toIndex(begin, len)
-      , upTo   = toIndex(end, len)
-      , size   = toLength(upTo - start)
-      , cloned = Array(size)
-      , i      = 0;
-    for(; i < size; i++)cloned[i] = klass == 'String'
-      ? this.charAt(start + i)
-      : this[start + i];
-    return cloned;
-  }
-});
-$def($def.P + $def.F * (IObject != Object), 'Array', {
-  join: function(){
-    return _join.apply(IObject(this), arguments);
-  }
-});
-
-// 22.1.2.2 / 15.4.3.2 Array.isArray(arg)
-$def($def.S, 'Array', {isArray: function(arg){ return cof(arg) == 'Array'; }});
-
-var createArrayReduce = function(isRight){
-  return function(callbackfn, memo){
-    aFunction(callbackfn);
-    var O      = IObject(this)
-      , length = toLength(O.length)
-      , index  = isRight ? length - 1 : 0
-      , i      = isRight ? -1 : 1;
-    if(arguments.length < 2)for(;;){
-      if(index in O){
-        memo = O[index];
-        index += i;
-        break;
-      }
-      index += i;
-      if(isRight ? index < 0 : length <= index){
-        throw TypeError('Reduce of empty array with no initial value');
-      }
-    }
-    for(;isRight ? index >= 0 : length > index; index += i)if(index in O){
-      memo = callbackfn(memo, O[index], index, this);
-    }
-    return memo;
-  };
-};
-var methodize = function($fn){
-  return function(arg1/*, arg2 = undefined */){
-    return $fn(this, arg1, arguments[1]);
-  };
-};
-$def($def.P, 'Array', {
-  // 22.1.3.10 / 15.4.4.18 Array.prototype.forEach(callbackfn [, thisArg])
-  forEach: $.each = $.each || methodize(arrayMethod(0)),
-  // 22.1.3.15 / 15.4.4.19 Array.prototype.map(callbackfn [, thisArg])
-  map: methodize(arrayMethod(1)),
-  // 22.1.3.7 / 15.4.4.20 Array.prototype.filter(callbackfn [, thisArg])
-  filter: methodize(arrayMethod(2)),
-  // 22.1.3.23 / 15.4.4.17 Array.prototype.some(callbackfn [, thisArg])
-  some: methodize(arrayMethod(3)),
-  // 22.1.3.5 / 15.4.4.16 Array.prototype.every(callbackfn [, thisArg])
-  every: methodize(arrayMethod(4)),
-  // 22.1.3.18 / 15.4.4.21 Array.prototype.reduce(callbackfn [, initialValue])
-  reduce: createArrayReduce(false),
-  // 22.1.3.19 / 15.4.4.22 Array.prototype.reduceRight(callbackfn [, initialValue])
-  reduceRight: createArrayReduce(true),
-  // 22.1.3.11 / 15.4.4.14 Array.prototype.indexOf(searchElement [, fromIndex])
-  indexOf: methodize($indexOf),
-  // 22.1.3.14 / 15.4.4.15 Array.prototype.lastIndexOf(searchElement [, fromIndex])
-  lastIndexOf: function(el, fromIndex /* = @[*-1] */){
-    var O      = toIObject(this)
-      , length = toLength(O.length)
-      , index  = length - 1;
-    if(arguments.length > 1)index = Math.min(index, toInteger(fromIndex));
-    if(index < 0)index = toLength(length + index);
-    for(;index >= 0; index--)if(index in O)if(O[index] === el)return index;
-    return -1;
-  }
-});
-
-// 20.3.3.1 / 15.9.4.4 Date.now()
-$def($def.S, 'Date', {now: function(){ return +new Date; }});
-
-var lz = function(num){
-  return num > 9 ? num : '0' + num;
-};
-
-// 20.3.4.36 / 15.9.5.43 Date.prototype.toISOString()
-// PhantomJS and old webkit had a broken Date implementation.
-var date       = new Date(-5e13 - 1)
-  , brokenDate = !(date.toISOString && date.toISOString() == '0385-07-25T07:06:39.999Z'
-      && fails(function(){ new Date(NaN).toISOString(); }));
-$def($def.P + $def.F * brokenDate, 'Date', {
-  toISOString: function toISOString(){
-    if(!isFinite(this))throw RangeError('Invalid time value');
-    var d = this
-      , y = d.getUTCFullYear()
-      , m = d.getUTCMilliseconds()
-      , s = y < 0 ? '-' : y > 9999 ? '+' : '';
-    return s + ('00000' + Math.abs(y)).slice(s ? -6 : -4) +
-      '-' + lz(d.getUTCMonth() + 1) + '-' + lz(d.getUTCDate()) +
-      'T' + lz(d.getUTCHours()) + ':' + lz(d.getUTCMinutes()) +
-      ':' + lz(d.getUTCSeconds()) + '.' + (m > 99 ? m : '0' + lz(m)) + 'Z';
-  }
-});
-},{"./$":46,"./$.a-function":7,"./$.an-object":8,"./$.array-includes":9,"./$.array-methods":10,"./$.cof":13,"./$.def":20,"./$.dom-create":22,"./$.fails":25,"./$.has":31,"./$.html":33,"./$.invoke":34,"./$.iobject":35,"./$.is-object":38,"./$.property-desc":57,"./$.support-desc":71,"./$.to-index":74,"./$.to-integer":75,"./$.to-iobject":76,"./$.to-length":77,"./$.to-object":78,"./$.uid":79}],84:[function(require,module,exports){
-'use strict';
-var $def     = require('./$.def')
-  , toObject = require('./$.to-object')
-  , toIndex  = require('./$.to-index')
-  , toLength = require('./$.to-length');
-$def($def.P, 'Array', {
-  // 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)
-  copyWithin: function copyWithin(target/* = 0 */, start /* = 0, end = @length */){
-    var O     = toObject(this)
-      , len   = toLength(O.length)
-      , to    = toIndex(target, len)
-      , from  = toIndex(start, len)
-      , end   = arguments[2]
-      , fin   = end === undefined ? len : toIndex(end, len)
-      , count = Math.min(fin - from, len - to)
-      , inc   = 1;
-    if(from < to && to < from + count){
-      inc  = -1;
-      from = from + count - 1;
-      to   = to   + count - 1;
-    }
-    while(count-- > 0){
-      if(from in O)O[to] = O[from];
-      else delete O[to];
-      to   += inc;
-      from += inc;
-    } return O;
-  }
-});
-require('./$.unscope')('copyWithin');
-},{"./$.def":20,"./$.to-index":74,"./$.to-length":77,"./$.to-object":78,"./$.unscope":80}],85:[function(require,module,exports){
-'use strict';
-var $def     = require('./$.def')
-  , toObject = require('./$.to-object')
-  , toIndex  = require('./$.to-index')
-  , toLength = require('./$.to-length');
-$def($def.P, 'Array', {
-  // 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)
-  fill: function fill(value /*, start = 0, end = @length */){
-    var O      = toObject(this, true)
-      , length = toLength(O.length)
-      , index  = toIndex(arguments[1], length)
-      , end    = arguments[2]
-      , endPos = end === undefined ? length : toIndex(end, length);
-    while(endPos > index)O[index++] = value;
-    return O;
-  }
-});
-require('./$.unscope')('fill');
-},{"./$.def":20,"./$.to-index":74,"./$.to-length":77,"./$.to-object":78,"./$.unscope":80}],86:[function(require,module,exports){
-'use strict';
-// 22.1.3.9 Array.prototype.findIndex(predicate, thisArg = undefined)
-var KEY    = 'findIndex'
-  , $def   = require('./$.def')
-  , forced = true
-  , $find  = require('./$.array-methods')(6);
-// Shouldn't skip holes
-if(KEY in [])Array(1)[KEY](function(){ forced = false; });
-$def($def.P + $def.F * forced, 'Array', {
-  findIndex: function findIndex(callbackfn/*, that = undefined */){
-    return $find(this, callbackfn, arguments[1]);
-  }
-});
-require('./$.unscope')(KEY);
-},{"./$.array-methods":10,"./$.def":20,"./$.unscope":80}],87:[function(require,module,exports){
-'use strict';
-// 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)
-var KEY    = 'find'
-  , $def   = require('./$.def')
-  , forced = true
-  , $find  = require('./$.array-methods')(5);
-// Shouldn't skip holes
-if(KEY in [])Array(1)[KEY](function(){ forced = false; });
-$def($def.P + $def.F * forced, 'Array', {
-  find: function find(callbackfn/*, that = undefined */){
-    return $find(this, callbackfn, arguments[1]);
-  }
-});
-require('./$.unscope')(KEY);
-},{"./$.array-methods":10,"./$.def":20,"./$.unscope":80}],88:[function(require,module,exports){
-'use strict';
-var ctx         = require('./$.ctx')
-  , $def        = require('./$.def')
-  , toObject    = require('./$.to-object')
-  , call        = require('./$.iter-call')
-  , isArrayIter = require('./$.is-array-iter')
-  , toLength    = require('./$.to-length')
-  , getIterFn   = require('./core.get-iterator-method');
-$def($def.S + $def.F * !require('./$.iter-detect')(function(iter){ Array.from(iter); }), 'Array', {
-  // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
-  from: function from(arrayLike/*, mapfn = undefined, thisArg = undefined*/){
-    var O       = toObject(arrayLike)
-      , C       = typeof this == 'function' ? this : Array
-      , mapfn   = arguments[1]
-      , mapping = mapfn !== undefined
-      , index   = 0
-      , iterFn  = getIterFn(O)
-      , length, result, step, iterator;
-    if(mapping)mapfn = ctx(mapfn, arguments[2], 2);
-    // if object isn't iterable or it's array with default iterator - use simple case
-    if(iterFn != undefined && !(C == Array && isArrayIter(iterFn))){
-      for(iterator = iterFn.call(O), result = new C; !(step = iterator.next()).done; index++){
-        result[index] = mapping ? call(iterator, mapfn, [step.value, index], true) : step.value;
-      }
-    } else {
-      for(result = new C(length = toLength(O.length)); length > index; index++){
-        result[index] = mapping ? mapfn(O[index], index) : O[index];
-      }
-    }
-    result.length = index;
-    return result;
-  }
-});
-},{"./$.ctx":19,"./$.def":20,"./$.is-array-iter":36,"./$.iter-call":40,"./$.iter-detect":43,"./$.to-length":77,"./$.to-object":78,"./core.get-iterator-method":82}],89:[function(require,module,exports){
-'use strict';
-var setUnscope = require('./$.unscope')
-  , step       = require('./$.iter-step')
-  , Iterators  = require('./$.iterators')
-  , toIObject  = require('./$.to-iobject');
-
-// 22.1.3.4 Array.prototype.entries()
-// 22.1.3.13 Array.prototype.keys()
-// 22.1.3.29 Array.prototype.values()
-// 22.1.3.30 Array.prototype[@@iterator]()
-require('./$.iter-define')(Array, 'Array', function(iterated, kind){
-  this._t = toIObject(iterated); // target
-  this._i = 0;                   // next index
-  this._k = kind;                // kind
-// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
-}, function(){
-  var O     = this._t
-    , kind  = this._k
-    , index = this._i++;
-  if(!O || index >= O.length){
-    this._t = undefined;
-    return step(1);
-  }
-  if(kind == 'keys'  )return step(0, index);
-  if(kind == 'values')return step(0, O[index]);
-  return step(0, [index, O[index]]);
-}, 'values');
-
-// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
-Iterators.Arguments = Iterators.Array;
-
-setUnscope('keys');
-setUnscope('values');
-setUnscope('entries');
-},{"./$.iter-define":42,"./$.iter-step":44,"./$.iterators":45,"./$.to-iobject":76,"./$.unscope":80}],90:[function(require,module,exports){
-'use strict';
-var $def = require('./$.def');
-$def($def.S, 'Array', {
-  // 22.1.2.3 Array.of( ...items)
-  of: function of(/* ...args */){
-    var index  = 0
-      , length = arguments.length
-      , result = new (typeof this == 'function' ? this : Array)(length);
-    while(length > index)result[index] = arguments[index++];
-    result.length = length;
-    return result;
-  }
-});
-},{"./$.def":20}],91:[function(require,module,exports){
-require('./$.species')(Array);
-},{"./$.species":64}],92:[function(require,module,exports){
-'use strict';
-var $             = require('./$')
-  , isObject      = require('./$.is-object')
-  , HAS_INSTANCE  = require('./$.wks')('hasInstance')
-  , FunctionProto = Function.prototype;
-// 19.2.3.6 Function.prototype[@@hasInstance](V)
-if(!(HAS_INSTANCE in FunctionProto))$.setDesc(FunctionProto, HAS_INSTANCE, {value: function(O){
-  if(typeof this != 'function' || !isObject(O))return false;
-  if(!isObject(this.prototype))return O instanceof this;
-  // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
-  while(O = $.getProto(O))if(this.prototype === O)return true;
-  return false;
-}});
-},{"./$":46,"./$.is-object":38,"./$.wks":81}],93:[function(require,module,exports){
-var setDesc    = require('./$').setDesc
-  , createDesc = require('./$.property-desc')
-  , has        = require('./$.has')
-  , FProto     = Function.prototype
-  , nameRE     = /^\s*function ([^ (]*)/
-  , NAME       = 'name';
-// 19.2.4.2 name
-NAME in FProto || require('./$.support-desc') && setDesc(FProto, NAME, {
-  configurable: true,
-  get: function(){
-    var match = ('' + this).match(nameRE)
-      , name  = match ? match[1] : '';
-    has(this, NAME) || setDesc(this, NAME, createDesc(5, name));
-    return name;
-  }
-});
-},{"./$":46,"./$.has":31,"./$.property-desc":57,"./$.support-desc":71}],94:[function(require,module,exports){
-'use strict';
-var strong = require('./$.collection-strong');
-
-// 23.1 Map Objects
-require('./$.collection')('Map', function(get){
-  return function Map(){ return get(this, arguments[0]); };
-}, {
-  // 23.1.3.6 Map.prototype.get(key)
-  get: function get(key){
-    var entry = strong.getEntry(this, key);
-    return entry && entry.v;
-  },
-  // 23.1.3.9 Map.prototype.set(key, value)
-  set: function set(key, value){
-    return strong.def(this, key === 0 ? 0 : key, value);
-  }
-}, strong, true);
-},{"./$.collection":17,"./$.collection-strong":14}],95:[function(require,module,exports){
-// 20.2.2.3 Math.acosh(x)
-var $def   = require('./$.def')
-  , log1p  = require('./$.log1p')
-  , sqrt   = Math.sqrt
-  , $acosh = Math.acosh;
-
-// V8 bug https://code.google.com/p/v8/issues/detail?id=3509 
-$def($def.S + $def.F * !($acosh && Math.floor($acosh(Number.MAX_VALUE)) == 710), 'Math', {
-  acosh: function acosh(x){
-    return (x = +x) < 1 ? NaN : x > 94906265.62425156
-      ? Math.log(x) + Math.LN2
-      : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
-  }
-});
-},{"./$.def":20,"./$.log1p":49}],96:[function(require,module,exports){
-// 20.2.2.5 Math.asinh(x)
-var $def = require('./$.def');
-
-function asinh(x){
-  return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : Math.log(x + Math.sqrt(x * x + 1));
-}
-
-$def($def.S, 'Math', {asinh: asinh});
-},{"./$.def":20}],97:[function(require,module,exports){
-// 20.2.2.7 Math.atanh(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {
-  atanh: function atanh(x){
-    return (x = +x) == 0 ? x : Math.log((1 + x) / (1 - x)) / 2;
-  }
-});
-},{"./$.def":20}],98:[function(require,module,exports){
-// 20.2.2.9 Math.cbrt(x)
-var $def = require('./$.def')
-  , sign = require('./$.sign');
-
-$def($def.S, 'Math', {
-  cbrt: function cbrt(x){
-    return sign(x = +x) * Math.pow(Math.abs(x), 1 / 3);
-  }
-});
-},{"./$.def":20,"./$.sign":63}],99:[function(require,module,exports){
-// 20.2.2.11 Math.clz32(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {
-  clz32: function clz32(x){
-    return (x >>>= 0) ? 31 - Math.floor(Math.log(x + 0.5) * Math.LOG2E) : 32;
-  }
-});
-},{"./$.def":20}],100:[function(require,module,exports){
-// 20.2.2.12 Math.cosh(x)
-var $def = require('./$.def')
-  , exp  = Math.exp;
-
-$def($def.S, 'Math', {
-  cosh: function cosh(x){
-    return (exp(x = +x) + exp(-x)) / 2;
-  }
-});
-},{"./$.def":20}],101:[function(require,module,exports){
-// 20.2.2.14 Math.expm1(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {expm1: require('./$.expm1')});
-},{"./$.def":20,"./$.expm1":24}],102:[function(require,module,exports){
-// 20.2.2.16 Math.fround(x)
-var $def  = require('./$.def')
-  , sign  = require('./$.sign')
-  , pow   = Math.pow
-  , EPSILON   = pow(2, -52)
-  , EPSILON32 = pow(2, -23)
-  , MAX32     = pow(2, 127) * (2 - EPSILON32)
-  , MIN32     = pow(2, -126);
-
-var roundTiesToEven = function(n){
-  return n + 1 / EPSILON - 1 / EPSILON;
-};
-
-
-$def($def.S, 'Math', {
-  fround: function fround(x){
-    var $abs  = Math.abs(x)
-      , $sign = sign(x)
-      , a, result;
-    if($abs < MIN32)return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;
-    a = (1 + EPSILON32 / EPSILON) * $abs;
-    result = a - (a - $abs);
-    if(result > MAX32 || result != result)return $sign * Infinity;
-    return $sign * result;
-  }
-});
-},{"./$.def":20,"./$.sign":63}],103:[function(require,module,exports){
-// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])
-var $def = require('./$.def')
-  , abs  = Math.abs;
-
-$def($def.S, 'Math', {
-  hypot: function hypot(value1, value2){ // eslint-disable-line no-unused-vars
-    var sum  = 0
-      , i    = 0
-      , len  = arguments.length
-      , larg = 0
-      , arg, div;
-    while(i < len){
-      arg = abs(arguments[i++]);
-      if(larg < arg){
-        div  = larg / arg;
-        sum  = sum * div * div + 1;
-        larg = arg;
-      } else if(arg > 0){
-        div  = arg / larg;
-        sum += div * div;
-      } else sum += arg;
-    }
-    return larg === Infinity ? Infinity : larg * Math.sqrt(sum);
-  }
-});
-},{"./$.def":20}],104:[function(require,module,exports){
-// 20.2.2.18 Math.imul(x, y)
-var $def = require('./$.def');
-
-// WebKit fails with big numbers
-$def($def.S + $def.F * require('./$.fails')(function(){
-  return Math.imul(0xffffffff, 5) != -5;
-}), 'Math', {
-  imul: function imul(x, y){
-    var UINT16 = 0xffff
-      , xn = +x
-      , yn = +y
-      , xl = UINT16 & xn
-      , yl = UINT16 & yn;
-    return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);
-  }
-});
-},{"./$.def":20,"./$.fails":25}],105:[function(require,module,exports){
-// 20.2.2.21 Math.log10(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {
-  log10: function log10(x){
-    return Math.log(x) / Math.LN10;
-  }
-});
-},{"./$.def":20}],106:[function(require,module,exports){
-// 20.2.2.20 Math.log1p(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {log1p: require('./$.log1p')});
-},{"./$.def":20,"./$.log1p":49}],107:[function(require,module,exports){
-// 20.2.2.22 Math.log2(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {
-  log2: function log2(x){
-    return Math.log(x) / Math.LN2;
-  }
-});
-},{"./$.def":20}],108:[function(require,module,exports){
-// 20.2.2.28 Math.sign(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {sign: require('./$.sign')});
-},{"./$.def":20,"./$.sign":63}],109:[function(require,module,exports){
-// 20.2.2.30 Math.sinh(x)
-var $def  = require('./$.def')
-  , expm1 = require('./$.expm1')
-  , exp   = Math.exp;
-
-$def($def.S, 'Math', {
-  sinh: function sinh(x){
-    return Math.abs(x = +x) < 1
-      ? (expm1(x) - expm1(-x)) / 2
-      : (exp(x - 1) - exp(-x - 1)) * (Math.E / 2);
-  }
-});
-},{"./$.def":20,"./$.expm1":24}],110:[function(require,module,exports){
-// 20.2.2.33 Math.tanh(x)
-var $def  = require('./$.def')
-  , expm1 = require('./$.expm1')
-  , exp   = Math.exp;
-
-$def($def.S, 'Math', {
-  tanh: function tanh(x){
-    var a = expm1(x = +x)
-      , b = expm1(-x);
-    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));
-  }
-});
-},{"./$.def":20,"./$.expm1":24}],111:[function(require,module,exports){
-// 20.2.2.34 Math.trunc(x)
-var $def = require('./$.def');
-
-$def($def.S, 'Math', {
-  trunc: function trunc(it){
-    return (it > 0 ? Math.floor : Math.ceil)(it);
-  }
-});
-},{"./$.def":20}],112:[function(require,module,exports){
-'use strict';
-var $          = require('./$')
-  , global     = require('./$.global')
-  , has        = require('./$.has')
-  , cof        = require('./$.cof')
-  , isObject   = require('./$.is-object')
-  , fails      = require('./$.fails')
-  , NUMBER     = 'Number'
-  , $Number    = global[NUMBER]
-  , Base       = $Number
-  , proto      = $Number.prototype
-  // Opera ~12 has broken Object#toString
-  , BROKEN_COF = cof($.create(proto)) == NUMBER;
-var toPrimitive = function(it){
-  var fn, val;
-  if(typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it)))return val;
-  if(typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it)))return val;
-  throw TypeError("Can't convert object to number");
-};
-var toNumber = function(it){
-  if(isObject(it))it = toPrimitive(it);
-  if(typeof it == 'string' && it.length > 2 && it.charCodeAt(0) == 48){
-    var binary = false;
-    switch(it.charCodeAt(1)){
-      case 66 : case 98  : binary = true;
-      case 79 : case 111 : return parseInt(it.slice(2), binary ? 2 : 8);
-    }
-  } return +it;
-};
-if(!($Number('0o1') && $Number('0b1'))){
-  $Number = function Number(it){
-    var that = this;
-    return that instanceof $Number
-      // check on 1..constructor(foo) case
-      && (BROKEN_COF ? fails(function(){ proto.valueOf.call(that); }) : cof(that) != NUMBER)
-        ? new Base(toNumber(it)) : toNumber(it);
-  };
-  $.each.call(require('./$.support-desc') ? $.getNames(Base) : (
-      // ES3:
-      'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
-      // ES6 (in case, if modules with ES6 Number statics required before):
-      'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
-      'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'
-    ).split(','), function(key){
-      if(has(Base, key) && !has($Number, key)){
-        $.setDesc($Number, key, $.getDesc(Base, key));
-      }
-    }
-  );
-  $Number.prototype = proto;
-  proto.constructor = $Number;
-  require('./$.redef')(global, NUMBER, $Number);
-}
-},{"./$":46,"./$.cof":13,"./$.fails":25,"./$.global":30,"./$.has":31,"./$.is-object":38,"./$.redef":58,"./$.support-desc":71}],113:[function(require,module,exports){
-// 20.1.2.1 Number.EPSILON
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {EPSILON: Math.pow(2, -52)});
-},{"./$.def":20}],114:[function(require,module,exports){
-// 20.1.2.2 Number.isFinite(number)
-var $def      = require('./$.def')
-  , _isFinite = require('./$.global').isFinite;
-
-$def($def.S, 'Number', {
-  isFinite: function isFinite(it){
-    return typeof it == 'number' && _isFinite(it);
-  }
-});
-},{"./$.def":20,"./$.global":30}],115:[function(require,module,exports){
-// 20.1.2.3 Number.isInteger(number)
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {isInteger: require('./$.is-integer')});
-},{"./$.def":20,"./$.is-integer":37}],116:[function(require,module,exports){
-// 20.1.2.4 Number.isNaN(number)
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {
-  isNaN: function isNaN(number){
-    return number != number;
-  }
-});
-},{"./$.def":20}],117:[function(require,module,exports){
-// 20.1.2.5 Number.isSafeInteger(number)
-var $def      = require('./$.def')
-  , isInteger = require('./$.is-integer')
-  , abs       = Math.abs;
-
-$def($def.S, 'Number', {
-  isSafeInteger: function isSafeInteger(number){
-    return isInteger(number) && abs(number) <= 0x1fffffffffffff;
-  }
-});
-},{"./$.def":20,"./$.is-integer":37}],118:[function(require,module,exports){
-// 20.1.2.6 Number.MAX_SAFE_INTEGER
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {MAX_SAFE_INTEGER: 0x1fffffffffffff});
-},{"./$.def":20}],119:[function(require,module,exports){
-// 20.1.2.10 Number.MIN_SAFE_INTEGER
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {MIN_SAFE_INTEGER: -0x1fffffffffffff});
-},{"./$.def":20}],120:[function(require,module,exports){
-// 20.1.2.12 Number.parseFloat(string)
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {parseFloat: parseFloat});
-},{"./$.def":20}],121:[function(require,module,exports){
-// 20.1.2.13 Number.parseInt(string, radix)
-var $def = require('./$.def');
-
-$def($def.S, 'Number', {parseInt: parseInt});
-},{"./$.def":20}],122:[function(require,module,exports){
-// 19.1.3.1 Object.assign(target, source)
-var $def = require('./$.def');
-$def($def.S, 'Object', {assign: require('./$.assign')});
-},{"./$.assign":11,"./$.def":20}],123:[function(require,module,exports){
-// 19.1.2.5 Object.freeze(O)
-var isObject = require('./$.is-object');
-
-require('./$.object-sap')('freeze', function($freeze){
-  return function freeze(it){
-    return $freeze && isObject(it) ? $freeze(it) : it;
-  };
-});
-},{"./$.is-object":38,"./$.object-sap":52}],124:[function(require,module,exports){
-// 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
-var toIObject = require('./$.to-iobject');
-
-require('./$.object-sap')('getOwnPropertyDescriptor', function($getOwnPropertyDescriptor){
-  return function getOwnPropertyDescriptor(it, key){
-    return $getOwnPropertyDescriptor(toIObject(it), key);
-  };
-});
-},{"./$.object-sap":52,"./$.to-iobject":76}],125:[function(require,module,exports){
-// 19.1.2.7 Object.getOwnPropertyNames(O)
-require('./$.object-sap')('getOwnPropertyNames', function(){
-  return require('./$.get-names').get;
-});
-},{"./$.get-names":29,"./$.object-sap":52}],126:[function(require,module,exports){
-// 19.1.2.9 Object.getPrototypeOf(O)
-var toObject = require('./$.to-object');
-
-require('./$.object-sap')('getPrototypeOf', function($getPrototypeOf){
-  return function getPrototypeOf(it){
-    return $getPrototypeOf(toObject(it));
-  };
-});
-},{"./$.object-sap":52,"./$.to-object":78}],127:[function(require,module,exports){
-// 19.1.2.11 Object.isExtensible(O)
-var isObject = require('./$.is-object');
-
-require('./$.object-sap')('isExtensible', function($isExtensible){
-  return function isExtensible(it){
-    return isObject(it) ? $isExtensible ? $isExtensible(it) : true : false;
-  };
-});
-},{"./$.is-object":38,"./$.object-sap":52}],128:[function(require,module,exports){
-// 19.1.2.12 Object.isFrozen(O)
-var isObject = require('./$.is-object');
-
-require('./$.object-sap')('isFrozen', function($isFrozen){
-  return function isFrozen(it){
-    return isObject(it) ? $isFrozen ? $isFrozen(it) : false : true;
-  };
-});
-},{"./$.is-object":38,"./$.object-sap":52}],129:[function(require,module,exports){
-// 19.1.2.13 Object.isSealed(O)
-var isObject = require('./$.is-object');
-
-require('./$.object-sap')('isSealed', function($isSealed){
-  return function isSealed(it){
-    return isObject(it) ? $isSealed ? $isSealed(it) : false : true;
-  };
-});
-},{"./$.is-object":38,"./$.object-sap":52}],130:[function(require,module,exports){
-// 19.1.3.10 Object.is(value1, value2)
-var $def = require('./$.def');
-$def($def.S, 'Object', {
-  is: require('./$.same')
-});
-},{"./$.def":20,"./$.same":60}],131:[function(require,module,exports){
-// 19.1.2.14 Object.keys(O)
-var toObject = require('./$.to-object');
-
-require('./$.object-sap')('keys', function($keys){
-  return function keys(it){
-    return $keys(toObject(it));
-  };
-});
-},{"./$.object-sap":52,"./$.to-object":78}],132:[function(require,module,exports){
-// 19.1.2.15 Object.preventExtensions(O)
-var isObject = require('./$.is-object');
-
-require('./$.object-sap')('preventExtensions', function($preventExtensions){
-  return function preventExtensions(it){
-    return $preventExtensions && isObject(it) ? $preventExtensions(it) : it;
-  };
-});
-},{"./$.is-object":38,"./$.object-sap":52}],133:[function(require,module,exports){
-// 19.1.2.17 Object.seal(O)
-var isObject = require('./$.is-object');
-
-require('./$.object-sap')('seal', function($seal){
-  return function seal(it){
-    return $seal && isObject(it) ? $seal(it) : it;
-  };
-});
-},{"./$.is-object":38,"./$.object-sap":52}],134:[function(require,module,exports){
-// 19.1.3.19 Object.setPrototypeOf(O, proto)
-var $def = require('./$.def');
-$def($def.S, 'Object', {setPrototypeOf: require('./$.set-proto').set});
-},{"./$.def":20,"./$.set-proto":61}],135:[function(require,module,exports){
-'use strict';
-// 19.1.3.6 Object.prototype.toString()
-var classof = require('./$.classof')
-  , test    = {};
-test[require('./$.wks')('toStringTag')] = 'z';
-if(test + '' != '[object z]'){
-  require('./$.redef')(Object.prototype, 'toString', function toString(){
-    return '[object ' + classof(this) + ']';
-  }, true);
-}
-},{"./$.classof":12,"./$.redef":58,"./$.wks":81}],136:[function(require,module,exports){
-'use strict';
-var $          = require('./$')
-  , LIBRARY    = require('./$.library')
-  , global     = require('./$.global')
-  , ctx        = require('./$.ctx')
-  , classof    = require('./$.classof')
-  , $def       = require('./$.def')
-  , isObject   = require('./$.is-object')
-  , anObject   = require('./$.an-object')
-  , aFunction  = require('./$.a-function')
-  , strictNew  = require('./$.strict-new')
-  , forOf      = require('./$.for-of')
-  , setProto   = require('./$.set-proto').set
-  , same       = require('./$.same')
-  , species    = require('./$.species')
-  , SPECIES    = require('./$.wks')('species')
-  , RECORD     = require('./$.uid')('record')
-  , asap       = require('./$.microtask')
-  , PROMISE    = 'Promise'
-  , process    = global.process
-  , isNode     = classof(process) == 'process'
-  , P          = global[PROMISE]
-  , Wrapper;
-
-var testResolve = function(sub){
-  var test = new P(function(){});
-  if(sub)test.constructor = Object;
-  return P.resolve(test) === test;
-};
-
-var useNative = function(){
-  var works = false;
-  function P2(x){
-    var self = new P(x);
-    setProto(self, P2.prototype);
-    return self;
-  }
-  try {
-    works = P && P.resolve && testResolve();
-    setProto(P2, P);
-    P2.prototype = $.create(P.prototype, {constructor: {value: P2}});
-    // actual Firefox has broken subclass support, test that
-    if(!(P2.resolve(5).then(function(){}) instanceof P2)){
-      works = false;
-    }
-    // actual V8 bug, https://code.google.com/p/v8/issues/detail?id=4162
-    if(works && require('./$.support-desc')){
-      var thenableThenGotten = false;
-      P.resolve($.setDesc({}, 'then', {
-        get: function(){ thenableThenGotten = true; }
-      }));
-      works = thenableThenGotten;
-    }
-  } catch(e){ works = false; }
-  return works;
-}();
-
-// helpers
-var isPromise = function(it){
-  return isObject(it) && (useNative ? classof(it) == 'Promise' : RECORD in it);
-};
-var sameConstructor = function(a, b){
-  // library wrapper special case
-  if(LIBRARY && a === P && b === Wrapper)return true;
-  return same(a, b);
-};
-var getConstructor = function(C){
-  var S = anObject(C)[SPECIES];
-  return S != undefined ? S : C;
-};
-var isThenable = function(it){
-  var then;
-  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
-};
-var notify = function(record, isReject){
-  if(record.n)return;
-  record.n = true;
-  var chain = record.c;
-  asap(function(){
-    var value = record.v
-      , ok    = record.s == 1
-      , i     = 0;
-    var run = function(react){
-      var cb = ok ? react.ok : react.fail
-        , ret, then;
-      try {
-        if(cb){
-          if(!ok)record.h = true;
-          ret = cb === true ? value : cb(value);
-          if(ret === react.P){
-            react.rej(TypeError('Promise-chain cycle'));
-          } else if(then = isThenable(ret)){
-            then.call(ret, react.res, react.rej);
-          } else react.res(ret);
-        } else react.rej(value);
-      } catch(err){
-        react.rej(err);
-      }
-    };
-    while(chain.length > i)run(chain[i++]); // variable length - can't use forEach
-    chain.length = 0;
-    record.n = false;
-    if(isReject)setTimeout(function(){
-      asap(function(){
-        if(isUnhandled(record.p)){
-          if(isNode){
-            process.emit('unhandledRejection', value, record.p);
-          } else if(global.console && console.error){
-            console.error('Unhandled promise rejection', value);
-          }
-        }
-        record.a = undefined;
-      });
-    }, 1);
-  });
-};
-var isUnhandled = function(promise){
-  var record = promise[RECORD]
-    , chain  = record.a || record.c
-    , i      = 0
-    , react;
-  if(record.h)return false;
-  while(chain.length > i){
-    react = chain[i++];
-    if(react.fail || !isUnhandled(react.P))return false;
-  } return true;
-};
-var $reject = function(value){
-  var record = this;
-  if(record.d)return;
-  record.d = true;
-  record = record.r || record; // unwrap
-  record.v = value;
-  record.s = 2;
-  record.a = record.c.slice();
-  notify(record, true);
-};
-var $resolve = function(value){
-  var record = this
-    , then;
-  if(record.d)return;
-  record.d = true;
-  record = record.r || record; // unwrap
-  try {
-    if(then = isThenable(value)){
-      asap(function(){
-        var wrapper = {r: record, d: false}; // wrap
-        try {
-          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
-        } catch(e){
-          $reject.call(wrapper, e);
-        }
-      });
-    } else {
-      record.v = value;
-      record.s = 1;
-      notify(record, false);
-    }
-  } catch(e){
-    $reject.call({r: record, d: false}, e); // wrap
-  }
-};
-
-// constructor polyfill
-if(!useNative){
-  // 25.4.3.1 Promise(executor)
-  P = function Promise(executor){
-    aFunction(executor);
-    var record = {
-      p: strictNew(this, P, PROMISE),         // <- promise
-      c: [],                                  // <- awaiting reactions
-      a: undefined,                           // <- checked in isUnhandled reactions
-      s: 0,                                   // <- state
-      d: false,                               // <- done
-      v: undefined,                           // <- value
-      h: false,                               // <- handled rejection
-      n: false                                // <- notify
-    };
-    this[RECORD] = record;
-    try {
-      executor(ctx($resolve, record, 1), ctx($reject, record, 1));
-    } catch(err){
-      $reject.call(record, err);
-    }
-  };
-  require('./$.mix')(P.prototype, {
-    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
-    then: function then(onFulfilled, onRejected){
-      var S = anObject(anObject(this).constructor)[SPECIES];
-      var react = {
-        ok:   typeof onFulfilled == 'function' ? onFulfilled : true,
-        fail: typeof onRejected == 'function'  ? onRejected  : false
-      };
-      var promise = react.P = new (S != undefined ? S : P)(function(res, rej){
-        react.res = aFunction(res);
-        react.rej = aFunction(rej);
-      });
-      var record = this[RECORD];
-      record.c.push(react);
-      if(record.a)record.a.push(react);
-      if(record.s)notify(record, false);
-      return promise;
-    },
-    // 25.4.5.1 Promise.prototype.catch(onRejected)
-    'catch': function(onRejected){
-      return this.then(undefined, onRejected);
-    }
-  });
-}
-
-// export
-$def($def.G + $def.W + $def.F * !useNative, {Promise: P});
-require('./$.tag')(P, PROMISE);
-species(P);
-species(Wrapper = require('./$.core')[PROMISE]);
-
-// statics
-$def($def.S + $def.F * !useNative, PROMISE, {
-  // 25.4.4.5 Promise.reject(r)
-  reject: function reject(r){
-    return new this(function(res, rej){ rej(r); });
-  }
-});
-$def($def.S + $def.F * (!useNative || testResolve(true)), PROMISE, {
-  // 25.4.4.6 Promise.resolve(x)
-  resolve: function resolve(x){
-    return isPromise(x) && sameConstructor(x.constructor, this)
-      ? x : new this(function(res){ res(x); });
-  }
-});
-$def($def.S + $def.F * !(useNative && require('./$.iter-detect')(function(iter){
-  P.all(iter)['catch'](function(){});
-})), PROMISE, {
-  // 25.4.4.1 Promise.all(iterable)
-  all: function all(iterable){
-    var C      = getConstructor(this)
-      , values = [];
-    return new C(function(res, rej){
-      forOf(iterable, false, values.push, values);
-      var remaining = values.length
-        , results   = Array(remaining);
-      if(remaining)$.each.call(values, function(promise, index){
-        C.resolve(promise).then(function(value){
-          results[index] = value;
-          --remaining || res(results);
-        }, rej);
-      });
-      else res(results);
-    });
-  },
-  // 25.4.4.4 Promise.race(iterable)
-  race: function race(iterable){
-    var C = getConstructor(this);
-    return new C(function(res, rej){
-      forOf(iterable, false, function(promise){
-        C.resolve(promise).then(res, rej);
-      });
-    });
-  }
-});
-},{"./$":46,"./$.a-function":7,"./$.an-object":8,"./$.classof":12,"./$.core":18,"./$.ctx":19,"./$.def":20,"./$.for-of":28,"./$.global":30,"./$.is-object":38,"./$.iter-detect":43,"./$.library":48,"./$.microtask":50,"./$.mix":51,"./$.same":60,"./$.set-proto":61,"./$.species":64,"./$.strict-new":65,"./$.support-desc":71,"./$.tag":72,"./$.uid":79,"./$.wks":81}],137:[function(require,module,exports){
-// 26.1.1 Reflect.apply(target, thisArgument, argumentsList)
-var $def   = require('./$.def')
-  , _apply = Function.apply;
-
-$def($def.S, 'Reflect', {
-  apply: function apply(target, thisArgument, argumentsList){
-    return _apply.call(target, thisArgument, argumentsList);
-  }
-});
-},{"./$.def":20}],138:[function(require,module,exports){
-// 26.1.2 Reflect.construct(target, argumentsList [, newTarget])
-var $         = require('./$')
-  , $def      = require('./$.def')
-  , aFunction = require('./$.a-function')
-  , anObject  = require('./$.an-object')
-  , isObject  = require('./$.is-object')
-  , bind      = Function.bind || require('./$.core').Function.prototype.bind;
-
-$def($def.S, 'Reflect', {
-  construct: function construct(Target, args /*, newTarget*/){
-    aFunction(Target);
-    if(arguments.length < 3){
-      // w/o newTarget, optimization for 0-4 arguments
-      if(args != undefined)switch(anObject(args).length){
-        case 0: return new Target;
-        case 1: return new Target(args[0]);
-        case 2: return new Target(args[0], args[1]);
-        case 3: return new Target(args[0], args[1], args[2]);
-        case 4: return new Target(args[0], args[1], args[2], args[3]);
-      }
-      // w/o newTarget, lot of arguments case
-      var $args = [null];
-      $args.push.apply($args, args);
-      return new (bind.apply(Target, $args));
-    }
-    // with newTarget, not support built-in constructors
-    var proto    = aFunction(arguments[2]).prototype
-      , instance = $.create(isObject(proto) ? proto : Object.prototype)
-      , result   = Function.apply.call(Target, instance, args);
-    return isObject(result) ? result : instance;
-  }
-});
-},{"./$":46,"./$.a-function":7,"./$.an-object":8,"./$.core":18,"./$.def":20,"./$.is-object":38}],139:[function(require,module,exports){
-// 26.1.3 Reflect.defineProperty(target, propertyKey, attributes)
-var $        = require('./$')
-  , $def     = require('./$.def')
-  , anObject = require('./$.an-object');
-
-// MS Edge has broken Reflect.defineProperty - throwing instead of returning false
-$def($def.S + $def.F * require('./$.fails')(function(){
-  Reflect.defineProperty($.setDesc({}, 1, {value: 1}), 1, {value: 2});
-}), 'Reflect', {
-  defineProperty: function defineProperty(target, propertyKey, attributes){
-    anObject(target);
-    try {
-      $.setDesc(target, propertyKey, attributes);
-      return true;
-    } catch(e){
-      return false;
-    }
-  }
-});
-},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.fails":25}],140:[function(require,module,exports){
-// 26.1.4 Reflect.deleteProperty(target, propertyKey)
-var $def     = require('./$.def')
-  , getDesc  = require('./$').getDesc
-  , anObject = require('./$.an-object');
-
-$def($def.S, 'Reflect', {
-  deleteProperty: function deleteProperty(target, propertyKey){
-    var desc = getDesc(anObject(target), propertyKey);
-    return desc && !desc.configurable ? false : delete target[propertyKey];
-  }
-});
-},{"./$":46,"./$.an-object":8,"./$.def":20}],141:[function(require,module,exports){
-'use strict';
-// 26.1.5 Reflect.enumerate(target)
-var $def     = require('./$.def')
-  , anObject = require('./$.an-object');
-var Enumerate = function(iterated){
-  this._t = anObject(iterated); // target
-  this._i = 0;                  // next index
-  var keys = this._k = []       // keys
-    , key;
-  for(key in iterated)keys.push(key);
-};
-require('./$.iter-create')(Enumerate, 'Object', function(){
-  var that = this
-    , keys = that._k
-    , key;
-  do {
-    if(that._i >= keys.length)return {value: undefined, done: true};
-  } while(!((key = keys[that._i++]) in that._t));
-  return {value: key, done: false};
-});
-
-$def($def.S, 'Reflect', {
-  enumerate: function enumerate(target){
-    return new Enumerate(target);
-  }
-});
-},{"./$.an-object":8,"./$.def":20,"./$.iter-create":41}],142:[function(require,module,exports){
-// 26.1.7 Reflect.getOwnPropertyDescriptor(target, propertyKey)
-var $        = require('./$')
-  , $def     = require('./$.def')
-  , anObject = require('./$.an-object');
-
-$def($def.S, 'Reflect', {
-  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey){
-    return $.getDesc(anObject(target), propertyKey);
-  }
-});
-},{"./$":46,"./$.an-object":8,"./$.def":20}],143:[function(require,module,exports){
-// 26.1.8 Reflect.getPrototypeOf(target)
-var $def     = require('./$.def')
-  , getProto = require('./$').getProto
-  , anObject = require('./$.an-object');
-
-$def($def.S, 'Reflect', {
-  getPrototypeOf: function getPrototypeOf(target){
-    return getProto(anObject(target));
-  }
-});
-},{"./$":46,"./$.an-object":8,"./$.def":20}],144:[function(require,module,exports){
-// 26.1.6 Reflect.get(target, propertyKey [, receiver])
-var $        = require('./$')
-  , has      = require('./$.has')
-  , $def     = require('./$.def')
-  , isObject = require('./$.is-object')
-  , anObject = require('./$.an-object');
-
-function get(target, propertyKey/*, receiver*/){
-  var receiver = arguments.length < 3 ? target : arguments[2]
-    , desc, proto;
-  if(anObject(target) === receiver)return target[propertyKey];
-  if(desc = $.getDesc(target, propertyKey))return has(desc, 'value')
-    ? desc.value
-    : desc.get !== undefined
-      ? desc.get.call(receiver)
-      : undefined;
-  if(isObject(proto = $.getProto(target)))return get(proto, propertyKey, receiver);
-}
-
-$def($def.S, 'Reflect', {get: get});
-},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.has":31,"./$.is-object":38}],145:[function(require,module,exports){
-// 26.1.9 Reflect.has(target, propertyKey)
-var $def = require('./$.def');
-
-$def($def.S, 'Reflect', {
-  has: function has(target, propertyKey){
-    return propertyKey in target;
-  }
-});
-},{"./$.def":20}],146:[function(require,module,exports){
-// 26.1.10 Reflect.isExtensible(target)
-var $def          = require('./$.def')
-  , anObject      = require('./$.an-object')
-  , $isExtensible = Object.isExtensible;
-
-$def($def.S, 'Reflect', {
-  isExtensible: function isExtensible(target){
-    anObject(target);
-    return $isExtensible ? $isExtensible(target) : true;
-  }
-});
-},{"./$.an-object":8,"./$.def":20}],147:[function(require,module,exports){
-// 26.1.11 Reflect.ownKeys(target)
-var $def = require('./$.def');
-
-$def($def.S, 'Reflect', {ownKeys: require('./$.own-keys')});
-},{"./$.def":20,"./$.own-keys":54}],148:[function(require,module,exports){
-// 26.1.12 Reflect.preventExtensions(target)
-var $def               = require('./$.def')
-  , anObject           = require('./$.an-object')
-  , $preventExtensions = Object.preventExtensions;
-
-$def($def.S, 'Reflect', {
-  preventExtensions: function preventExtensions(target){
-    anObject(target);
-    try {
-      if($preventExtensions)$preventExtensions(target);
-      return true;
-    } catch(e){
-      return false;
-    }
-  }
-});
-},{"./$.an-object":8,"./$.def":20}],149:[function(require,module,exports){
-// 26.1.14 Reflect.setPrototypeOf(target, proto)
-var $def     = require('./$.def')
-  , setProto = require('./$.set-proto');
-
-if(setProto)$def($def.S, 'Reflect', {
-  setPrototypeOf: function setPrototypeOf(target, proto){
-    setProto.check(target, proto);
-    try {
-      setProto.set(target, proto);
-      return true;
-    } catch(e){
-      return false;
-    }
-  }
-});
-},{"./$.def":20,"./$.set-proto":61}],150:[function(require,module,exports){
-// 26.1.13 Reflect.set(target, propertyKey, V [, receiver])
-var $          = require('./$')
-  , has        = require('./$.has')
-  , $def       = require('./$.def')
-  , createDesc = require('./$.property-desc')
-  , anObject   = require('./$.an-object')
-  , isObject   = require('./$.is-object');
-
-function set(target, propertyKey, V/*, receiver*/){
-  var receiver = arguments.length < 4 ? target : arguments[3]
-    , ownDesc  = $.getDesc(anObject(target), propertyKey)
-    , existingDescriptor, proto;
-  if(!ownDesc){
-    if(isObject(proto = $.getProto(target))){
-      return set(proto, propertyKey, V, receiver);
-    }
-    ownDesc = createDesc(0);
-  }
-  if(has(ownDesc, 'value')){
-    if(ownDesc.writable === false || !isObject(receiver))return false;
-    existingDescriptor = $.getDesc(receiver, propertyKey) || createDesc(0);
-    existingDescriptor.value = V;
-    $.setDesc(receiver, propertyKey, existingDescriptor);
-    return true;
-  }
-  return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true);
-}
-
-$def($def.S, 'Reflect', {set: set});
-},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.has":31,"./$.is-object":38,"./$.property-desc":57}],151:[function(require,module,exports){
-var $       = require('./$')
-  , global  = require('./$.global')
-  , cof     = require('./$.cof')
-  , $flags  = require('./$.flags')
-  , $RegExp = global.RegExp
-  , Base    = $RegExp
-  , proto   = $RegExp.prototype
-  , re      = /a/g
-  // "new" creates a new object
-  , CORRECT_NEW = new $RegExp(re) !== re
-  // RegExp allows a regex with flags as the pattern
-  , ALLOWS_RE_WITH_FLAGS = function(){
-    try {
-      return $RegExp(re, 'i') == '/a/i';
-    } catch(e){ /* empty */ }
-  }();
-
-if(require('./$.support-desc')){
-  if(!CORRECT_NEW || !ALLOWS_RE_WITH_FLAGS){
-    $RegExp = function RegExp(pattern, flags){
-      var patternIsRegExp  = cof(pattern) == 'RegExp'
-        , flagsIsUndefined = flags === undefined;
-      if(!(this instanceof $RegExp) && patternIsRegExp && flagsIsUndefined)return pattern;
-      return CORRECT_NEW
-        ? new Base(patternIsRegExp && !flagsIsUndefined ? pattern.source : pattern, flags)
-        : new Base(patternIsRegExp ? pattern.source : pattern
-          , patternIsRegExp && flagsIsUndefined ? $flags.call(pattern) : flags);
-    };
-    $.each.call($.getNames(Base), function(key){
-      key in $RegExp || $.setDesc($RegExp, key, {
-        configurable: true,
-        get: function(){ return Base[key]; },
-        set: function(it){ Base[key] = it; }
-      });
-    });
-    proto.constructor = $RegExp;
-    $RegExp.prototype = proto;
-    require('./$.redef')(global, 'RegExp', $RegExp);
-  }
-}
-
-require('./$.species')($RegExp);
-},{"./$":46,"./$.cof":13,"./$.flags":27,"./$.global":30,"./$.redef":58,"./$.species":64,"./$.support-desc":71}],152:[function(require,module,exports){
-// 21.2.5.3 get RegExp.prototype.flags()
-var $ = require('./$');
-if(require('./$.support-desc') && /./g.flags != 'g')$.setDesc(RegExp.prototype, 'flags', {
-  configurable: true,
-  get: require('./$.flags')
-});
-},{"./$":46,"./$.flags":27,"./$.support-desc":71}],153:[function(require,module,exports){
-// @@match logic
-require('./$.fix-re-wks')('match', 1, function(defined, MATCH){
-  // 21.1.3.11 String.prototype.match(regexp)
-  return function match(regexp){
-    'use strict';
-    var O  = defined(this)
-      , fn = regexp == undefined ? undefined : regexp[MATCH];
-    return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
-  };
-});
-},{"./$.fix-re-wks":26}],154:[function(require,module,exports){
-// @@replace logic
-require('./$.fix-re-wks')('replace', 2, function(defined, REPLACE, $replace){
-  // 21.1.3.14 String.prototype.replace(searchValue, replaceValue)
-  return function replace(searchValue, replaceValue){
-    'use strict';
-    var O  = defined(this)
-      , fn = searchValue == undefined ? undefined : searchValue[REPLACE];
-    return fn !== undefined
-      ? fn.call(searchValue, O, replaceValue)
-      : $replace.call(String(O), searchValue, replaceValue);
-  };
-});
-},{"./$.fix-re-wks":26}],155:[function(require,module,exports){
-// @@search logic
-require('./$.fix-re-wks')('search', 1, function(defined, SEARCH){
-  // 21.1.3.15 String.prototype.search(regexp)
-  return function search(regexp){
-    'use strict';
-    var O  = defined(this)
-      , fn = regexp == undefined ? undefined : regexp[SEARCH];
-    return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
-  };
-});
-},{"./$.fix-re-wks":26}],156:[function(require,module,exports){
-// @@split logic
-require('./$.fix-re-wks')('split', 2, function(defined, SPLIT, $split){
-  // 21.1.3.17 String.prototype.split(separator, limit)
-  return function split(separator, limit){
-    'use strict';
-    var O  = defined(this)
-      , fn = separator == undefined ? undefined : separator[SPLIT];
-    return fn !== undefined
-      ? fn.call(separator, O, limit)
-      : $split.call(String(O), separator, limit);
-  };
-});
-},{"./$.fix-re-wks":26}],157:[function(require,module,exports){
-'use strict';
-var strong = require('./$.collection-strong');
-
-// 23.2 Set Objects
-require('./$.collection')('Set', function(get){
-  return function Set(){ return get(this, arguments[0]); };
-}, {
-  // 23.2.3.1 Set.prototype.add(value)
-  add: function add(value){
-    return strong.def(this, value = value === 0 ? 0 : value, value);
-  }
-}, strong);
-},{"./$.collection":17,"./$.collection-strong":14}],158:[function(require,module,exports){
-'use strict';
-var $def = require('./$.def')
-  , $at  = require('./$.string-at')(false);
-$def($def.P, 'String', {
-  // 21.1.3.3 String.prototype.codePointAt(pos)
-  codePointAt: function codePointAt(pos){
-    return $at(this, pos);
-  }
-});
-},{"./$.def":20,"./$.string-at":66}],159:[function(require,module,exports){
-'use strict';
-var $def     = require('./$.def')
-  , toLength = require('./$.to-length')
-  , context  = require('./$.string-context');
-
-// should throw error on regex
-$def($def.P + $def.F * !require('./$.fails')(function(){ 'q'.endsWith(/./); }), 'String', {
-  // 21.1.3.6 String.prototype.endsWith(searchString [, endPosition])
-  endsWith: function endsWith(searchString /*, endPosition = @length */){
-    var that = context(this, searchString, 'endsWith')
-      , endPosition = arguments[1]
-      , len    = toLength(that.length)
-      , end    = endPosition === undefined ? len : Math.min(toLength(endPosition), len)
-      , search = String(searchString);
-    return that.slice(end - search.length, end) === search;
-  }
-});
-},{"./$.def":20,"./$.fails":25,"./$.string-context":67,"./$.to-length":77}],160:[function(require,module,exports){
-var $def    = require('./$.def')
-  , toIndex = require('./$.to-index')
-  , fromCharCode = String.fromCharCode
-  , $fromCodePoint = String.fromCodePoint;
-
-// length should be 1, old FF problem
-$def($def.S + $def.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
-  // 21.1.2.2 String.fromCodePoint(...codePoints)
-  fromCodePoint: function fromCodePoint(x){ // eslint-disable-line no-unused-vars
-    var res = []
-      , len = arguments.length
-      , i   = 0
-      , code;
-    while(len > i){
-      code = +arguments[i++];
-      if(toIndex(code, 0x10ffff) !== code)throw RangeError(code + ' is not a valid code point');
-      res.push(code < 0x10000
-        ? fromCharCode(code)
-        : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)
-      );
-    } return res.join('');
-  }
-});
-},{"./$.def":20,"./$.to-index":74}],161:[function(require,module,exports){
-'use strict';
-var $def    = require('./$.def')
-  , context = require('./$.string-context');
-
-$def($def.P, 'String', {
-  // 21.1.3.7 String.prototype.includes(searchString, position = 0)
-  includes: function includes(searchString /*, position = 0 */){
-    return !!~context(this, searchString, 'includes').indexOf(searchString, arguments[1]);
-  }
-});
-},{"./$.def":20,"./$.string-context":67}],162:[function(require,module,exports){
-'use strict';
-var $at  = require('./$.string-at')(true);
-
-// 21.1.3.27 String.prototype[@@iterator]()
-require('./$.iter-define')(String, 'String', function(iterated){
-  this._t = String(iterated); // target
-  this._i = 0;                // next index
-// 21.1.5.2.1 %StringIteratorPrototype%.next()
-}, function(){
-  var O     = this._t
-    , index = this._i
-    , point;
-  if(index >= O.length)return {value: undefined, done: true};
-  point = $at(O, index);
-  this._i += point.length;
-  return {value: point, done: false};
-});
-},{"./$.iter-define":42,"./$.string-at":66}],163:[function(require,module,exports){
-var $def      = require('./$.def')
-  , toIObject = require('./$.to-iobject')
-  , toLength  = require('./$.to-length');
-
-$def($def.S, 'String', {
-  // 21.1.2.4 String.raw(callSite, ...substitutions)
-  raw: function raw(callSite){
-    var tpl = toIObject(callSite.raw)
-      , len = toLength(tpl.length)
-      , sln = arguments.length
-      , res = []
-      , i   = 0;
-    while(len > i){
-      res.push(String(tpl[i++]));
-      if(i < sln)res.push(String(arguments[i]));
-    } return res.join('');
-  }
-});
-},{"./$.def":20,"./$.to-iobject":76,"./$.to-length":77}],164:[function(require,module,exports){
-var $def = require('./$.def');
-
-$def($def.P, 'String', {
-  // 21.1.3.13 String.prototype.repeat(count)
-  repeat: require('./$.string-repeat')
-});
-},{"./$.def":20,"./$.string-repeat":69}],165:[function(require,module,exports){
-'use strict';
-var $def     = require('./$.def')
-  , toLength = require('./$.to-length')
-  , context  = require('./$.string-context');
-
-// should throw error on regex
-$def($def.P + $def.F * !require('./$.fails')(function(){ 'q'.startsWith(/./); }), 'String', {
-  // 21.1.3.18 String.prototype.startsWith(searchString [, position ])
-  startsWith: function startsWith(searchString /*, position = 0 */){
-    var that   = context(this, searchString, 'startsWith')
-      , index  = toLength(Math.min(arguments[1], that.length))
-      , search = String(searchString);
-    return that.slice(index, index + search.length) === search;
-  }
-});
-},{"./$.def":20,"./$.fails":25,"./$.string-context":67,"./$.to-length":77}],166:[function(require,module,exports){
-'use strict';
-// 21.1.3.25 String.prototype.trim()
-require('./$.string-trim')('trim', function($trim){
-  return function trim(){
-    return $trim(this, 3);
-  };
-});
-},{"./$.string-trim":70}],167:[function(require,module,exports){
-'use strict';
-// ECMAScript 6 symbols shim
-var $              = require('./$')
-  , global         = require('./$.global')
-  , has            = require('./$.has')
-  , SUPPORT_DESC   = require('./$.support-desc')
-  , $def           = require('./$.def')
-  , $redef         = require('./$.redef')
-  , shared         = require('./$.shared')
-  , setTag         = require('./$.tag')
-  , uid            = require('./$.uid')
-  , wks            = require('./$.wks')
-  , keyOf          = require('./$.keyof')
-  , $names         = require('./$.get-names')
-  , enumKeys       = require('./$.enum-keys')
-  , anObject       = require('./$.an-object')
-  , toIObject      = require('./$.to-iobject')
-  , createDesc     = require('./$.property-desc')
-  , getDesc        = $.getDesc
-  , setDesc        = $.setDesc
-  , $create        = $.create
-  , getNames       = $names.get
-  , $Symbol        = global.Symbol
-  , setter         = false
-  , HIDDEN         = wks('_hidden')
-  , isEnum         = $.isEnum
-  , SymbolRegistry = shared('symbol-registry')
-  , AllSymbols     = shared('symbols')
-  , useNative      = typeof $Symbol == 'function'
-  , ObjectProto    = Object.prototype;
-
-var setSymbolDesc = SUPPORT_DESC ? function(){ // fallback for old Android
-  try {
-    return $create(setDesc({}, HIDDEN, {
-      get: function(){
-        return setDesc(this, HIDDEN, {value: false})[HIDDEN];
-      }
-    }))[HIDDEN] || setDesc;
-  } catch(e){
-    return function(it, key, D){
-      var protoDesc = getDesc(ObjectProto, key);
-      if(protoDesc)delete ObjectProto[key];
-      setDesc(it, key, D);
-      if(protoDesc && it !== ObjectProto)setDesc(ObjectProto, key, protoDesc);
-    };
-  }
-}() : setDesc;
-
-var wrap = function(tag){
-  var sym = AllSymbols[tag] = $create($Symbol.prototype);
-  sym._k = tag;
-  SUPPORT_DESC && setter && setSymbolDesc(ObjectProto, tag, {
-    configurable: true,
-    set: function(value){
-      if(has(this, HIDDEN) && has(this[HIDDEN], tag))this[HIDDEN][tag] = false;
-      setSymbolDesc(this, tag, createDesc(1, value));
-    }
-  });
-  return sym;
-};
-
-function defineProperty(it, key, D){
-  if(D && has(AllSymbols, key)){
-    if(!D.enumerable){
-      if(!has(it, HIDDEN))setDesc(it, HIDDEN, createDesc(1, {}));
-      it[HIDDEN][key] = true;
-    } else {
-      if(has(it, HIDDEN) && it[HIDDEN][key])it[HIDDEN][key] = false;
-      D = $create(D, {enumerable: createDesc(0, false)});
-    } return setSymbolDesc(it, key, D);
-  } return setDesc(it, key, D);
-}
-function defineProperties(it, P){
-  anObject(it);
-  var keys = enumKeys(P = toIObject(P))
-    , i    = 0
-    , l = keys.length
-    , key;
-  while(l > i)defineProperty(it, key = keys[i++], P[key]);
-  return it;
-}
-function create(it, P){
-  return P === undefined ? $create(it) : defineProperties($create(it), P);
-}
-function propertyIsEnumerable(key){
-  var E = isEnum.call(this, key);
-  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key]
-    ? E : true;
-}
-function getOwnPropertyDescriptor(it, key){
-  var D = getDesc(it = toIObject(it), key);
-  if(D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key]))D.enumerable = true;
-  return D;
-}
-function getOwnPropertyNames(it){
-  var names  = getNames(toIObject(it))
-    , result = []
-    , i      = 0
-    , key;
-  while(names.length > i)if(!has(AllSymbols, key = names[i++]) && key != HIDDEN)result.push(key);
-  return result;
-}
-function getOwnPropertySymbols(it){
-  var names  = getNames(toIObject(it))
-    , result = []
-    , i      = 0
-    , key;
-  while(names.length > i)if(has(AllSymbols, key = names[i++]))result.push(AllSymbols[key]);
-  return result;
-}
-
-// 19.4.1.1 Symbol([description])
-if(!useNative){
-  $Symbol = function Symbol(){
-    if(this instanceof $Symbol)throw TypeError('Symbol is not a constructor');
-    return wrap(uid(arguments[0]));
-  };
-  $redef($Symbol.prototype, 'toString', function(){
-    return this._k;
-  });
-
-  $.create     = create;
-  $.isEnum     = propertyIsEnumerable;
-  $.getDesc    = getOwnPropertyDescriptor;
-  $.setDesc    = defineProperty;
-  $.setDescs   = defineProperties;
-  $.getNames   = $names.get = getOwnPropertyNames;
-  $.getSymbols = getOwnPropertySymbols;
-
-  if(SUPPORT_DESC && !require('./$.library')){
-    $redef(ObjectProto, 'propertyIsEnumerable', propertyIsEnumerable, true);
-  }
-}
-
-var symbolStatics = {
-  // 19.4.2.1 Symbol.for(key)
-  'for': function(key){
-    return has(SymbolRegistry, key += '')
-      ? SymbolRegistry[key]
-      : SymbolRegistry[key] = $Symbol(key);
-  },
-  // 19.4.2.5 Symbol.keyFor(sym)
-  keyFor: function keyFor(key){
-    return keyOf(SymbolRegistry, key);
-  },
-  useSetter: function(){ setter = true; },
-  useSimple: function(){ setter = false; }
-};
-// 19.4.2.2 Symbol.hasInstance
-// 19.4.2.3 Symbol.isConcatSpreadable
-// 19.4.2.4 Symbol.iterator
-// 19.4.2.6 Symbol.match
-// 19.4.2.8 Symbol.replace
-// 19.4.2.9 Symbol.search
-// 19.4.2.10 Symbol.species
-// 19.4.2.11 Symbol.split
-// 19.4.2.12 Symbol.toPrimitive
-// 19.4.2.13 Symbol.toStringTag
-// 19.4.2.14 Symbol.unscopables
-$.each.call((
-    'hasInstance,isConcatSpreadable,iterator,match,replace,search,' +
-    'species,split,toPrimitive,toStringTag,unscopables'
-  ).split(','), function(it){
-    var sym = wks(it);
-    symbolStatics[it] = useNative ? sym : wrap(sym);
-  }
-);
-
-setter = true;
-
-$def($def.G + $def.W, {Symbol: $Symbol});
-
-$def($def.S, 'Symbol', symbolStatics);
-
-$def($def.S + $def.F * !useNative, 'Object', {
-  // 19.1.2.2 Object.create(O [, Properties])
-  create: create,
-  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
-  defineProperty: defineProperty,
-  // 19.1.2.3 Object.defineProperties(O, Properties)
-  defineProperties: defineProperties,
-  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
-  getOwnPropertyDescriptor: getOwnPropertyDescriptor,
-  // 19.1.2.7 Object.getOwnPropertyNames(O)
-  getOwnPropertyNames: getOwnPropertyNames,
-  // 19.1.2.8 Object.getOwnPropertySymbols(O)
-  getOwnPropertySymbols: getOwnPropertySymbols
-});
-
-// 19.4.3.5 Symbol.prototype[@@toStringTag]
-setTag($Symbol, 'Symbol');
-// 20.2.1.9 Math[@@toStringTag]
-setTag(Math, 'Math', true);
-// 24.3.3 JSON[@@toStringTag]
-setTag(global.JSON, 'JSON', true);
-},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.enum-keys":23,"./$.get-names":29,"./$.global":30,"./$.has":31,"./$.keyof":47,"./$.library":48,"./$.property-desc":57,"./$.redef":58,"./$.shared":62,"./$.support-desc":71,"./$.tag":72,"./$.to-iobject":76,"./$.uid":79,"./$.wks":81}],168:[function(require,module,exports){
-'use strict';
-var $            = require('./$')
-  , weak         = require('./$.collection-weak')
-  , isObject     = require('./$.is-object')
-  , has          = require('./$.has')
-  , frozenStore  = weak.frozenStore
-  , WEAK         = weak.WEAK
-  , isExtensible = Object.isExtensible || isObject
-  , tmp          = {};
-
-// 23.3 WeakMap Objects
-var $WeakMap = require('./$.collection')('WeakMap', function(get){
-  return function WeakMap(){ return get(this, arguments[0]); };
-}, {
-  // 23.3.3.3 WeakMap.prototype.get(key)
-  get: function get(key){
-    if(isObject(key)){
-      if(!isExtensible(key))return frozenStore(this).get(key);
-      if(has(key, WEAK))return key[WEAK][this._i];
-    }
-  },
-  // 23.3.3.5 WeakMap.prototype.set(key, value)
-  set: function set(key, value){
-    return weak.def(this, key, value);
-  }
-}, weak, true, true);
-
-// IE11 WeakMap frozen keys fix
-if(new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7){
-  $.each.call(['delete', 'has', 'get', 'set'], function(key){
-    var proto  = $WeakMap.prototype
-      , method = proto[key];
-    require('./$.redef')(proto, key, function(a, b){
-      // store frozen objects on leaky map
-      if(isObject(a) && !isExtensible(a)){
-        var result = frozenStore(this)[key](a, b);
-        return key == 'set' ? this : result;
-      // store all the rest on native weakmap
-      } return method.call(this, a, b);
-    });
-  });
-}
-},{"./$":46,"./$.collection":17,"./$.collection-weak":16,"./$.has":31,"./$.is-object":38,"./$.redef":58}],169:[function(require,module,exports){
-'use strict';
-var weak = require('./$.collection-weak');
-
-// 23.4 WeakSet Objects
-require('./$.collection')('WeakSet', function(get){
-  return function WeakSet(){ return get(this, arguments[0]); };
-}, {
-  // 23.4.3.1 WeakSet.prototype.add(value)
-  add: function add(value){
-    return weak.def(this, value, true);
-  }
-}, weak, false, true);
-},{"./$.collection":17,"./$.collection-weak":16}],170:[function(require,module,exports){
-'use strict';
-var $def      = require('./$.def')
-  , $includes = require('./$.array-includes')(true);
-$def($def.P, 'Array', {
-  // https://github.com/domenic/Array.prototype.includes
-  includes: function includes(el /*, fromIndex = 0 */){
-    return $includes(this, el, arguments[1]);
-  }
-});
-require('./$.unscope')('includes');
-},{"./$.array-includes":9,"./$.def":20,"./$.unscope":80}],171:[function(require,module,exports){
-// https://github.com/DavidBruant/Map-Set.prototype.toJSON
-var $def  = require('./$.def');
-
-$def($def.P, 'Map', {toJSON: require('./$.collection-to-json')('Map')});
-},{"./$.collection-to-json":15,"./$.def":20}],172:[function(require,module,exports){
-// http://goo.gl/XkBrjD
-var $def     = require('./$.def')
-  , $entries = require('./$.object-to-array')(true);
-
-$def($def.S, 'Object', {
-  entries: function entries(it){
-    return $entries(it);
-  }
-});
-},{"./$.def":20,"./$.object-to-array":53}],173:[function(require,module,exports){
-// https://gist.github.com/WebReflection/9353781
-var $          = require('./$')
-  , $def       = require('./$.def')
-  , ownKeys    = require('./$.own-keys')
-  , toIObject  = require('./$.to-iobject')
-  , createDesc = require('./$.property-desc');
-
-$def($def.S, 'Object', {
-  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object){
-    var O       = toIObject(object)
-      , setDesc = $.setDesc
-      , getDesc = $.getDesc
-      , keys    = ownKeys(O)
-      , result  = {}
-      , i       = 0
-      , key, D;
-    while(keys.length > i){
-      D = getDesc(O, key = keys[i++]);
-      if(key in result)setDesc(result, key, createDesc(0, D));
-      else result[key] = D;
-    } return result;
-  }
-});
-},{"./$":46,"./$.def":20,"./$.own-keys":54,"./$.property-desc":57,"./$.to-iobject":76}],174:[function(require,module,exports){
-// http://goo.gl/XkBrjD
-var $def    = require('./$.def')
-  , $values = require('./$.object-to-array')(false);
-
-$def($def.S, 'Object', {
-  values: function values(it){
-    return $values(it);
-  }
-});
-},{"./$.def":20,"./$.object-to-array":53}],175:[function(require,module,exports){
-// https://github.com/benjamingr/RexExp.escape
-var $def = require('./$.def')
-  , $re  = require('./$.replacer')(/[\\^$*+?.()|[\]{}]/g, '\\$&');
-$def($def.S, 'RegExp', {escape: function escape(it){ return $re(it); }});
-
-},{"./$.def":20,"./$.replacer":59}],176:[function(require,module,exports){
-// https://github.com/DavidBruant/Map-Set.prototype.toJSON
-var $def  = require('./$.def');
-
-$def($def.P, 'Set', {toJSON: require('./$.collection-to-json')('Set')});
-},{"./$.collection-to-json":15,"./$.def":20}],177:[function(require,module,exports){
-// https://github.com/mathiasbynens/String.prototype.at
-'use strict';
-var $def = require('./$.def')
-  , $at  = require('./$.string-at')(true);
-$def($def.P, 'String', {
-  at: function at(pos){
-    return $at(this, pos);
-  }
-});
-},{"./$.def":20,"./$.string-at":66}],178:[function(require,module,exports){
-'use strict';
-var $def = require('./$.def')
-  , $pad = require('./$.string-pad');
-$def($def.P, 'String', {
-  padLeft: function padLeft(maxLength /*, fillString = ' ' */){
-    return $pad(this, maxLength, arguments[1], true);
-  }
-});
-},{"./$.def":20,"./$.string-pad":68}],179:[function(require,module,exports){
-'use strict';
-var $def = require('./$.def')
-  , $pad = require('./$.string-pad');
-$def($def.P, 'String', {
-  padRight: function padRight(maxLength /*, fillString = ' ' */){
-    return $pad(this, maxLength, arguments[1], false);
-  }
-});
-},{"./$.def":20,"./$.string-pad":68}],180:[function(require,module,exports){
-'use strict';
-// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
-require('./$.string-trim')('trimLeft', function($trim){
-  return function trimLeft(){
-    return $trim(this, 1);
-  };
-});
-},{"./$.string-trim":70}],181:[function(require,module,exports){
-'use strict';
-// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
-require('./$.string-trim')('trimRight', function($trim){
-  return function trimRight(){
-    return $trim(this, 2);
-  };
-});
-},{"./$.string-trim":70}],182:[function(require,module,exports){
-// JavaScript 1.6 / Strawman array statics shim
-var $       = require('./$')
-  , $def    = require('./$.def')
-  , $Array  = require('./$.core').Array || Array
-  , statics = {};
-var setStatics = function(keys, length){
-  $.each.call(keys.split(','), function(key){
-    if(length == undefined && key in $Array)statics[key] = $Array[key];
-    else if(key in [])statics[key] = require('./$.ctx')(Function.call, [][key], length);
-  });
-};
-setStatics('pop,reverse,shift,keys,values,entries', 1);
-setStatics('indexOf,every,some,forEach,map,filter,find,findIndex,includes', 3);
-setStatics('join,slice,concat,push,splice,unshift,sort,lastIndexOf,' +
-           'reduce,reduceRight,copyWithin,fill');
-$def($def.S, 'Array', statics);
-},{"./$":46,"./$.core":18,"./$.ctx":19,"./$.def":20}],183:[function(require,module,exports){
-require('./es6.array.iterator');
-var global      = require('./$.global')
-  , hide        = require('./$.hide')
-  , Iterators   = require('./$.iterators')
-  , ITERATOR    = require('./$.wks')('iterator')
-  , NL          = global.NodeList
-  , HTC         = global.HTMLCollection
-  , NLProto     = NL && NL.prototype
-  , HTCProto    = HTC && HTC.prototype
-  , ArrayValues = Iterators.NodeList = Iterators.HTMLCollection = Iterators.Array;
-if(NL && !(ITERATOR in NLProto))hide(NLProto, ITERATOR, ArrayValues);
-if(HTC && !(ITERATOR in HTCProto))hide(HTCProto, ITERATOR, ArrayValues);
-},{"./$.global":30,"./$.hide":32,"./$.iterators":45,"./$.wks":81,"./es6.array.iterator":89}],184:[function(require,module,exports){
-var $def  = require('./$.def')
-  , $task = require('./$.task');
-$def($def.G + $def.B, {
-  setImmediate:   $task.set,
-  clearImmediate: $task.clear
-});
-},{"./$.def":20,"./$.task":73}],185:[function(require,module,exports){
-// ie9- setTimeout & setInterval additional parameters fix
-var global     = require('./$.global')
-  , $def       = require('./$.def')
-  , invoke     = require('./$.invoke')
-  , partial    = require('./$.partial')
-  , navigator  = global.navigator
-  , MSIE       = !!navigator && /MSIE .\./.test(navigator.userAgent); // <- dirty ie9- check
-var wrap = function(set){
-  return MSIE ? function(fn, time /*, ...args */){
-    return set(invoke(
-      partial,
-      [].slice.call(arguments, 2),
-      typeof fn == 'function' ? fn : Function(fn)
-    ), time);
-  } : set;
-};
-$def($def.G + $def.B + $def.F * MSIE, {
-  setTimeout:  wrap(global.setTimeout),
-  setInterval: wrap(global.setInterval)
-});
-},{"./$.def":20,"./$.global":30,"./$.invoke":34,"./$.partial":55}],186:[function(require,module,exports){
-require('./modules/es5');
-require('./modules/es6.symbol');
-require('./modules/es6.object.assign');
-require('./modules/es6.object.is');
-require('./modules/es6.object.set-prototype-of');
-require('./modules/es6.object.to-string');
-require('./modules/es6.object.freeze');
-require('./modules/es6.object.seal');
-require('./modules/es6.object.prevent-extensions');
-require('./modules/es6.object.is-frozen');
-require('./modules/es6.object.is-sealed');
-require('./modules/es6.object.is-extensible');
-require('./modules/es6.object.get-own-property-descriptor');
-require('./modules/es6.object.get-prototype-of');
-require('./modules/es6.object.keys');
-require('./modules/es6.object.get-own-property-names');
-require('./modules/es6.function.name');
-require('./modules/es6.function.has-instance');
-require('./modules/es6.number.constructor');
-require('./modules/es6.number.epsilon');
-require('./modules/es6.number.is-finite');
-require('./modules/es6.number.is-integer');
-require('./modules/es6.number.is-nan');
-require('./modules/es6.number.is-safe-integer');
-require('./modules/es6.number.max-safe-integer');
-require('./modules/es6.number.min-safe-integer');
-require('./modules/es6.number.parse-float');
-require('./modules/es6.number.parse-int');
-require('./modules/es6.math.acosh');
-require('./modules/es6.math.asinh');
-require('./modules/es6.math.atanh');
-require('./modules/es6.math.cbrt');
-require('./modules/es6.math.clz32');
-require('./modules/es6.math.cosh');
-require('./modules/es6.math.expm1');
-require('./modules/es6.math.fround');
-require('./modules/es6.math.hypot');
-require('./modules/es6.math.imul');
-require('./modules/es6.math.log10');
-require('./modules/es6.math.log1p');
-require('./modules/es6.math.log2');
-require('./modules/es6.math.sign');
-require('./modules/es6.math.sinh');
-require('./modules/es6.math.tanh');
-require('./modules/es6.math.trunc');
-require('./modules/es6.string.from-code-point');
-require('./modules/es6.string.raw');
-require('./modules/es6.string.trim');
-require('./modules/es6.string.iterator');
-require('./modules/es6.string.code-point-at');
-require('./modules/es6.string.ends-with');
-require('./modules/es6.string.includes');
-require('./modules/es6.string.repeat');
-require('./modules/es6.string.starts-with');
-require('./modules/es6.array.from');
-require('./modules/es6.array.of');
-require('./modules/es6.array.iterator');
-require('./modules/es6.array.species');
-require('./modules/es6.array.copy-within');
-require('./modules/es6.array.fill');
-require('./modules/es6.array.find');
-require('./modules/es6.array.find-index');
-require('./modules/es6.regexp.constructor');
-require('./modules/es6.regexp.flags');
-require('./modules/es6.regexp.match');
-require('./modules/es6.regexp.replace');
-require('./modules/es6.regexp.search');
-require('./modules/es6.regexp.split');
-require('./modules/es6.promise');
-require('./modules/es6.map');
-require('./modules/es6.set');
-require('./modules/es6.weak-map');
-require('./modules/es6.weak-set');
-require('./modules/es6.reflect.apply');
-require('./modules/es6.reflect.construct');
-require('./modules/es6.reflect.define-property');
-require('./modules/es6.reflect.delete-property');
-require('./modules/es6.reflect.enumerate');
-require('./modules/es6.reflect.get');
-require('./modules/es6.reflect.get-own-property-descriptor');
-require('./modules/es6.reflect.get-prototype-of');
-require('./modules/es6.reflect.has');
-require('./modules/es6.reflect.is-extensible');
-require('./modules/es6.reflect.own-keys');
-require('./modules/es6.reflect.prevent-extensions');
-require('./modules/es6.reflect.set');
-require('./modules/es6.reflect.set-prototype-of');
-require('./modules/es7.array.includes');
-require('./modules/es7.string.at');
-require('./modules/es7.string.pad-left');
-require('./modules/es7.string.pad-right');
-require('./modules/es7.string.trim-left');
-require('./modules/es7.string.trim-right');
-require('./modules/es7.regexp.escape');
-require('./modules/es7.object.get-own-property-descriptors');
-require('./modules/es7.object.values');
-require('./modules/es7.object.entries');
-require('./modules/es7.map.to-json');
-require('./modules/es7.set.to-json');
-require('./modules/js.array.statics');
-require('./modules/web.timers');
-require('./modules/web.immediate');
-require('./modules/web.dom.iterable');
-module.exports = require('./modules/$.core');
-},{"./modules/$.core":18,"./modules/es5":83,"./modules/es6.array.copy-within":84,"./modules/es6.array.fill":85,"./modules/es6.array.find":87,"./modules/es6.array.find-index":86,"./modules/es6.array.from":88,"./modules/es6.array.iterator":89,"./modules/es6.array.of":90,"./modules/es6.array.species":91,"./modules/es6.function.has-instance":92,"./modules/es6.function.name":93,"./modules/es6.map":94,"./modules/es6.math.acosh":95,"./modules/es6.math.asinh":96,"./modules/es6.math.atanh":97,"./modules/es6.math.cbrt":98,"./modules/es6.math.clz32":99,"./modules/es6.math.cosh":100,"./modules/es6.math.expm1":101,"./modules/es6.math.fround":102,"./modules/es6.math.hypot":103,"./modules/es6.math.imul":104,"./modules/es6.math.log10":105,"./modules/es6.math.log1p":106,"./modules/es6.math.log2":107,"./modules/es6.math.sign":108,"./modules/es6.math.sinh":109,"./modules/es6.math.tanh":110,"./modules/es6.math.trunc":111,"./modules/es6.number.constructor":112,"./modules/es6.number.epsilon":113,"./modules/es6.number.is-finite":114,"./modules/es6.number.is-integer":115,"./modules/es6.number.is-nan":116,"./modules/es6.number.is-safe-integer":117,"./modules/es6.number.max-safe-integer":118,"./modules/es6.number.min-safe-integer":119,"./modules/es6.number.parse-float":120,"./modules/es6.number.parse-int":121,"./modules/es6.object.assign":122,"./modules/es6.object.freeze":123,"./modules/es6.object.get-own-property-descriptor":124,"./modules/es6.object.get-own-property-names":125,"./modules/es6.object.get-prototype-of":126,"./modules/es6.object.is":130,"./modules/es6.object.is-extensible":127,"./modules/es6.object.is-frozen":128,"./modules/es6.object.is-sealed":129,"./modules/es6.object.keys":131,"./modules/es6.object.prevent-extensions":132,"./modules/es6.object.seal":133,"./modules/es6.object.set-prototype-of":134,"./modules/es6.object.to-string":135,"./modules/es6.promise":136,"./modules/es6.reflect.apply":137,"./modules/es6.reflect.construct":138,"./modules/es6.reflect.define-property":139,"./modules/es6.reflect.delete-property":140,"./modules/es6.reflect.enumerate":141,"./modules/es6.reflect.get":144,"./modules/es6.reflect.get-own-property-descriptor":142,"./modules/es6.reflect.get-prototype-of":143,"./modules/es6.reflect.has":145,"./modules/es6.reflect.is-extensible":146,"./modules/es6.reflect.own-keys":147,"./modules/es6.reflect.prevent-extensions":148,"./modules/es6.reflect.set":150,"./modules/es6.reflect.set-prototype-of":149,"./modules/es6.regexp.constructor":151,"./modules/es6.regexp.flags":152,"./modules/es6.regexp.match":153,"./modules/es6.regexp.replace":154,"./modules/es6.regexp.search":155,"./modules/es6.regexp.split":156,"./modules/es6.set":157,"./modules/es6.string.code-point-at":158,"./modules/es6.string.ends-with":159,"./modules/es6.string.from-code-point":160,"./modules/es6.string.includes":161,"./modules/es6.string.iterator":162,"./modules/es6.string.raw":163,"./modules/es6.string.repeat":164,"./modules/es6.string.starts-with":165,"./modules/es6.string.trim":166,"./modules/es6.symbol":167,"./modules/es6.weak-map":168,"./modules/es6.weak-set":169,"./modules/es7.array.includes":170,"./modules/es7.map.to-json":171,"./modules/es7.object.entries":172,"./modules/es7.object.get-own-property-descriptors":173,"./modules/es7.object.values":174,"./modules/es7.regexp.escape":175,"./modules/es7.set.to-json":176,"./modules/es7.string.at":177,"./modules/es7.string.pad-left":178,"./modules/es7.string.pad-right":179,"./modules/es7.string.trim-left":180,"./modules/es7.string.trim-right":181,"./modules/js.array.statics":182,"./modules/web.dom.iterable":183,"./modules/web.immediate":184,"./modules/web.timers":185}],187:[function(require,module,exports){
-(function (process,global){
-/**
- * Copyright (c) 2014, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
- * additional grant of patent rights can be found in the PATENTS file in
- * the same directory.
- */
-
-!(function(global) {
-  "use strict";
-
-  var hasOwn = Object.prototype.hasOwnProperty;
-  var undefined; // More compressible than void 0.
-  var iteratorSymbol =
-    typeof Symbol === "function" && Symbol.iterator || "@@iterator";
-
-  var inModule = typeof module === "object";
-  var runtime = global.regeneratorRuntime;
-  if (runtime) {
-    if (inModule) {
-      // If regeneratorRuntime is defined globally and we're in a module,
-      // make the exports object identical to regeneratorRuntime.
-      module.exports = runtime;
-    }
-    // Don't bother evaluating the rest of this file if the runtime was
-    // already defined globally.
-    return;
-  }
-
-  // Define the runtime globally (as expected by generated code) as either
-  // module.exports (if we're in a module) or a new, empty object.
-  runtime = global.regeneratorRuntime = inModule ? module.exports : {};
-
-  function wrap(innerFn, outerFn, self, tryLocsList) {
-    // If outerFn provided, then outerFn.prototype instanceof Generator.
-    var generator = Object.create((outerFn || Generator).prototype);
-
-    generator._invoke = makeInvokeMethod(
-      innerFn, self || null,
-      new Context(tryLocsList || [])
-    );
-
-    return generator;
-  }
-  runtime.wrap = wrap;
-
-  // Try/catch helper to minimize deoptimizations. Returns a completion
-  // record like context.tryEntries[i].completion. This interface could
-  // have been (and was previously) designed to take a closure to be
-  // invoked without arguments, but in all the cases we care about we
-  // already have an existing method we want to call, so there's no need
-  // to create a new function object. We can even get away with assuming
-  // the method takes exactly one argument, since that happens to be true
-  // in every case, so we don't have to touch the arguments object. The
-  // only additional allocation required is the completion record, which
-  // has a stable shape and so hopefully should be cheap to allocate.
-  function tryCatch(fn, obj, arg) {
-    try {
-      return { type: "normal", arg: fn.call(obj, arg) };
-    } catch (err) {
-      return { type: "throw", arg: err };
-    }
-  }
-
-  var GenStateSuspendedStart = "suspendedStart";
-  var GenStateSuspendedYield = "suspendedYield";
-  var GenStateExecuting = "executing";
-  var GenStateCompleted = "completed";
-
-  // Returning this object from the innerFn has the same effect as
-  // breaking out of the dispatch switch statement.
-  var ContinueSentinel = {};
-
-  // Dummy constructor functions that we use as the .constructor and
-  // .constructor.prototype properties for functions that return Generator
-  // objects. For full spec compliance, you may wish to configure your
-  // minifier not to mangle the names of these two functions.
-  function Generator() {}
-  function GeneratorFunction() {}
-  function GeneratorFunctionPrototype() {}
-
-  var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype;
-  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
-  GeneratorFunctionPrototype.constructor = GeneratorFunction;
-  GeneratorFunction.displayName = "GeneratorFunction";
-
-  // Helper for defining the .next, .throw, and .return methods of the
-  // Iterator interface in terms of a single ._invoke method.
-  function defineIteratorMethods(prototype) {
-    ["next", "throw", "return"].forEach(function(method) {
-      prototype[method] = function(arg) {
-        return this._invoke(method, arg);
-      };
-    });
-  }
-
-  runtime.isGeneratorFunction = function(genFun) {
-    var ctor = typeof genFun === "function" && genFun.constructor;
-    return ctor
-      ? ctor === GeneratorFunction ||
-        // For the native GeneratorFunction constructor, the best we can
-        // do is to check its .name property.
-        (ctor.displayName || ctor.name) === "GeneratorFunction"
-      : false;
-  };
-
-  runtime.mark = function(genFun) {
-    genFun.__proto__ = GeneratorFunctionPrototype;
-    genFun.prototype = Object.create(Gp);
-    return genFun;
-  };
-
-  // Within the body of any async function, `await x` is transformed to
-  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
-  // `value instanceof AwaitArgument` to determine if the yielded value is
-  // meant to be awaited. Some may consider the name of this method too
-  // cutesy, but they are curmudgeons.
-  runtime.awrap = function(arg) {
-    return new AwaitArgument(arg);
-  };
-
-  function AwaitArgument(arg) {
-    this.arg = arg;
-  }
-
-  function AsyncIterator(generator) {
-    // This invoke function is written in a style that assumes some
-    // calling function (or Promise) will handle exceptions.
-    function invoke(method, arg) {
-      var result = generator[method](arg);
-      var value = result.value;
-      return value instanceof AwaitArgument
-        ? Promise.resolve(value.arg).then(invokeNext, invokeThrow)
-        : Promise.resolve(value).then(function(unwrapped) {
-            // When a yielded Promise is resolved, its final value becomes
-            // the .value of the Promise<{value,done}> result for the
-            // current iteration. If the Promise is rejected, however, the
-            // result for this iteration will be rejected with the same
-            // reason. Note that rejections of yielded Promises are not
-            // thrown back into the generator function, as is the case
-            // when an awaited Promise is rejected. This difference in
-            // behavior between yield and await is important, because it
-            // allows the consumer to decide what to do with the yielded
-            // rejection (swallow it and continue, manually .throw it back
-            // into the generator, abandon iteration, whatever). With
-            // await, by contrast, there is no opportunity to examine the
-            // rejection reason outside the generator function, so the
-            // only option is to throw it from the await expression, and
-            // let the generator function handle the exception.
-            result.value = unwrapped;
-            return result;
-          });
-    }
-
-    if (typeof process === "object" && process.domain) {
-      invoke = process.domain.bind(invoke);
-    }
-
-    var invokeNext = invoke.bind(generator, "next");
-    var invokeThrow = invoke.bind(generator, "throw");
-    var invokeReturn = invoke.bind(generator, "return");
-    var previousPromise;
-
-    function enqueue(method, arg) {
-      var enqueueResult =
-        // If enqueue has been called before, then we want to wait until
-        // all previous Promises have been resolved before calling invoke,
-        // so that results are always delivered in the correct order. If
-        // enqueue has not been called before, then it is important to
-        // call invoke immediately, without waiting on a callback to fire,
-        // so that the async generator function has the opportunity to do
-        // any necessary setup in a predictable way. This predictability
-        // is why the Promise constructor synchronously invokes its
-        // executor callback, and why async functions synchronously
-        // execute code before the first await. Since we implement simple
-        // async functions in terms of async generators, it is especially
-        // important to get this right, even though it requires care.
-        previousPromise ? previousPromise.then(function() {
-          return invoke(method, arg);
-        }) : new Promise(function(resolve) {
-          resolve(invoke(method, arg));
-        });
-
-      // Avoid propagating enqueueResult failures to Promises returned by
-      // later invocations of the iterator.
-      previousPromise = enqueueResult["catch"](function(ignored){});
-
-      return enqueueResult;
-    }
-
-    // Define the unified helper method that is used to implement .next,
-    // .throw, and .return (see defineIteratorMethods).
-    this._invoke = enqueue;
-  }
-
-  defineIteratorMethods(AsyncIterator.prototype);
-
-  // Note that simple async functions are implemented on top of
-  // AsyncIterator objects; they just return a Promise for the value of
-  // the final result produced by the iterator.
-  runtime.async = function(innerFn, outerFn, self, tryLocsList) {
-    var iter = new AsyncIterator(
-      wrap(innerFn, outerFn, self, tryLocsList)
-    );
-
-    return runtime.isGeneratorFunction(outerFn)
-      ? iter // If outerFn is a generator, return the full iterator.
-      : iter.next().then(function(result) {
-          return result.done ? result.value : iter.next();
-        });
-  };
-
-  function makeInvokeMethod(innerFn, self, context) {
-    var state = GenStateSuspendedStart;
-
-    return function invoke(method, arg) {
-      if (state === GenStateExecuting) {
-        throw new Error("Generator is already running");
-      }
-
-      if (state === GenStateCompleted) {
-        if (method === "throw") {
-          throw arg;
-        }
-
-        // Be forgiving, per 25.3.3.3.3 of the spec:
-        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
-        return doneResult();
-      }
-
-      while (true) {
-        var delegate = context.delegate;
-        if (delegate) {
-          if (method === "return" ||
-              (method === "throw" && delegate.iterator[method] === undefined)) {
-            // A return or throw (when the delegate iterator has no throw
-            // method) always terminates the yield* loop.
-            context.delegate = null;
-
-            // If the delegate iterator has a return method, give it a
-            // chance to clean up.
-            var returnMethod = delegate.iterator["return"];
-            if (returnMethod) {
-              var record = tryCatch(returnMethod, delegate.iterator, arg);
-              if (record.type === "throw") {
-                // If the return method threw an exception, let that
-                // exception prevail over the original return or throw.
-                method = "throw";
-                arg = record.arg;
-                continue;
-              }
-            }
-
-            if (method === "return") {
-              // Continue with the outer return, now that the delegate
-              // iterator has been terminated.
-              continue;
-            }
-          }
-
-          var record = tryCatch(
-            delegate.iterator[method],
-            delegate.iterator,
-            arg
-          );
-
-          if (record.type === "throw") {
-            context.delegate = null;
-
-            // Like returning generator.throw(uncaught), but without the
-            // overhead of an extra function call.
-            method = "throw";
-            arg = record.arg;
-            continue;
-          }
-
-          // Delegate generator ran and handled its own exceptions so
-          // regardless of what the method was, we continue as if it is
-          // "next" with an undefined arg.
-          method = "next";
-          arg = undefined;
-
-          var info = record.arg;
-          if (info.done) {
-            context[delegate.resultName] = info.value;
-            context.next = delegate.nextLoc;
-          } else {
-            state = GenStateSuspendedYield;
-            return info;
-          }
-
-          context.delegate = null;
-        }
-
-        if (method === "next") {
-          if (state === GenStateSuspendedYield) {
-            context.sent = arg;
-          } else {
-            context.sent = undefined;
-          }
-
-        } else if (method === "throw") {
-          if (state === GenStateSuspendedStart) {
-            state = GenStateCompleted;
-            throw arg;
-          }
-
-          if (context.dispatchException(arg)) {
-            // If the dispatched exception was caught by a catch block,
-            // then let that catch block handle the exception normally.
-            method = "next";
-            arg = undefined;
-          }
-
-        } else if (method === "return") {
-          context.abrupt("return", arg);
-        }
-
-        state = GenStateExecuting;
-
-        var record = tryCatch(innerFn, self, context);
-        if (record.type === "normal") {
-          // If an exception is thrown from innerFn, we leave state ===
-          // GenStateExecuting and loop back for another invocation.
-          state = context.done
-            ? GenStateCompleted
-            : GenStateSuspendedYield;
-
-          var info = {
-            value: record.arg,
-            done: context.done
-          };
-
-          if (record.arg === ContinueSentinel) {
-            if (context.delegate && method === "next") {
-              // Deliberately forget the last sent value so that we don't
-              // accidentally pass it on to the delegate.
-              arg = undefined;
-            }
-          } else {
-            return info;
-          }
-
-        } else if (record.type === "throw") {
-          state = GenStateCompleted;
-          // Dispatch the exception by looping back around to the
-          // context.dispatchException(arg) call above.
-          method = "throw";
-          arg = record.arg;
-        }
-      }
-    };
-  }
-
-  // Define Generator.prototype.{next,throw,return} in terms of the
-  // unified ._invoke helper method.
-  defineIteratorMethods(Gp);
-
-  Gp[iteratorSymbol] = function() {
-    return this;
-  };
-
-  Gp.toString = function() {
-    return "[object Generator]";
-  };
-
-  function pushTryEntry(locs) {
-    var entry = { tryLoc: locs[0] };
-
-    if (1 in locs) {
-      entry.catchLoc = locs[1];
-    }
-
-    if (2 in locs) {
-      entry.finallyLoc = locs[2];
-      entry.afterLoc = locs[3];
-    }
-
-    this.tryEntries.push(entry);
-  }
-
-  function resetTryEntry(entry) {
-    var record = entry.completion || {};
-    record.type = "normal";
-    delete record.arg;
-    entry.completion = record;
-  }
-
-  function Context(tryLocsList) {
-    // The root entry object (effectively a try statement without a catch
-    // or a finally block) gives us a place to store values thrown from
-    // locations where there is no enclosing try statement.
-    this.tryEntries = [{ tryLoc: "root" }];
-    tryLocsList.forEach(pushTryEntry, this);
-    this.reset(true);
-  }
-
-  runtime.keys = function(object) {
-    var keys = [];
-    for (var key in object) {
-      keys.push(key);
-    }
-    keys.reverse();
-
-    // Rather than returning an object with a next method, we keep
-    // things simple and return the next function itself.
-    return function next() {
-      while (keys.length) {
-        var key = keys.pop();
-        if (key in object) {
-          next.value = key;
-          next.done = false;
-          return next;
-        }
-      }
-
-      // To avoid creating an additional object, we just hang the .value
-      // and .done properties off the next function object itself. This
-      // also ensures that the minifier will not anonymize the function.
-      next.done = true;
-      return next;
-    };
-  };
-
-  function values(iterable) {
-    if (iterable) {
-      var iteratorMethod = iterable[iteratorSymbol];
-      if (iteratorMethod) {
-        return iteratorMethod.call(iterable);
-      }
-
-      if (typeof iterable.next === "function") {
-        return iterable;
-      }
-
-      if (!isNaN(iterable.length)) {
-        var i = -1, next = function next() {
-          while (++i < iterable.length) {
-            if (hasOwn.call(iterable, i)) {
-              next.value = iterable[i];
-              next.done = false;
-              return next;
-            }
-          }
-
-          next.value = undefined;
-          next.done = true;
-
-          return next;
-        };
-
-        return next.next = next;
-      }
-    }
-
-    // Return an iterator with no values.
-    return { next: doneResult };
-  }
-  runtime.values = values;
-
-  function doneResult() {
-    return { value: undefined, done: true };
-  }
-
-  Context.prototype = {
-    constructor: Context,
-
-    reset: function(skipTempReset) {
-      this.prev = 0;
-      this.next = 0;
-      this.sent = undefined;
-      this.done = false;
-      this.delegate = null;
-
-      this.tryEntries.forEach(resetTryEntry);
-
-      if (!skipTempReset) {
-        for (var name in this) {
-          // Not sure about the optimal order of these conditions:
-          if (name.charAt(0) === "t" &&
-              hasOwn.call(this, name) &&
-              !isNaN(+name.slice(1))) {
-            this[name] = undefined;
-          }
-        }
-      }
-    },
-
-    stop: function() {
-      this.done = true;
-
-      var rootEntry = this.tryEntries[0];
-      var rootRecord = rootEntry.completion;
-      if (rootRecord.type === "throw") {
-        throw rootRecord.arg;
-      }
-
-      return this.rval;
-    },
-
-    dispatchException: function(exception) {
-      if (this.done) {
-        throw exception;
-      }
-
-      var context = this;
-      function handle(loc, caught) {
-        record.type = "throw";
-        record.arg = exception;
-        context.next = loc;
-        return !!caught;
-      }
-
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        var record = entry.completion;
-
-        if (entry.tryLoc === "root") {
-          // Exception thrown outside of any try block that could handle
-          // it, so set the completion value of the entire function to
-          // throw the exception.
-          return handle("end");
-        }
-
-        if (entry.tryLoc <= this.prev) {
-          var hasCatch = hasOwn.call(entry, "catchLoc");
-          var hasFinally = hasOwn.call(entry, "finallyLoc");
-
-          if (hasCatch && hasFinally) {
-            if (this.prev < entry.catchLoc) {
-              return handle(entry.catchLoc, true);
-            } else if (this.prev < entry.finallyLoc) {
-              return handle(entry.finallyLoc);
-            }
-
-          } else if (hasCatch) {
-            if (this.prev < entry.catchLoc) {
-              return handle(entry.catchLoc, true);
-            }
-
-          } else if (hasFinally) {
-            if (this.prev < entry.finallyLoc) {
-              return handle(entry.finallyLoc);
-            }
-
-          } else {
-            throw new Error("try statement without catch or finally");
-          }
-        }
-      }
-    },
-
-    abrupt: function(type, arg) {
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        if (entry.tryLoc <= this.prev &&
-            hasOwn.call(entry, "finallyLoc") &&
-            this.prev < entry.finallyLoc) {
-          var finallyEntry = entry;
-          break;
-        }
-      }
-
-      if (finallyEntry &&
-          (type === "break" ||
-           type === "continue") &&
-          finallyEntry.tryLoc <= arg &&
-          arg <= finallyEntry.finallyLoc) {
-        // Ignore the finally entry if control is not jumping to a
-        // location outside the try/catch block.
-        finallyEntry = null;
-      }
-
-      var record = finallyEntry ? finallyEntry.completion : {};
-      record.type = type;
-      record.arg = arg;
-
-      if (finallyEntry) {
-        this.next = finallyEntry.finallyLoc;
-      } else {
-        this.complete(record);
-      }
-
-      return ContinueSentinel;
-    },
-
-    complete: function(record, afterLoc) {
-      if (record.type === "throw") {
-        throw record.arg;
-      }
-
-      if (record.type === "break" ||
-          record.type === "continue") {
-        this.next = record.arg;
-      } else if (record.type === "return") {
-        this.rval = record.arg;
-        this.next = "end";
-      } else if (record.type === "normal" && afterLoc) {
-        this.next = afterLoc;
-      }
-    },
-
-    finish: function(finallyLoc) {
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        if (entry.finallyLoc === finallyLoc) {
-          this.complete(entry.completion, entry.afterLoc);
-          resetTryEntry(entry);
-          return ContinueSentinel;
-        }
-      }
-    },
-
-    "catch": function(tryLoc) {
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        if (entry.tryLoc === tryLoc) {
-          var record = entry.completion;
-          if (record.type === "throw") {
-            var thrown = record.arg;
-            resetTryEntry(entry);
-          }
-          return thrown;
-        }
-      }
-
-      // The context.catch method must only be called with a location
-      // argument that corresponds to a known catch block.
-      throw new Error("illegal catch attempt");
-    },
-
-    delegateYield: function(iterable, resultName, nextLoc) {
-      this.delegate = {
-        iterator: values(iterable),
-        resultName: resultName,
-        nextLoc: nextLoc
-      };
-
-      return ContinueSentinel;
-    }
-  };
-})(
-  // Among the various tricks for obtaining a reference to the global
-  // object, this seems to be the most reliable technique that does not
-  // use indirect eval (which violates Content Security Policy).
-  typeof global === "object" ? global :
-  typeof window === "object" ? window :
-  typeof self === "object" ? self : this
-);
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"_process":190}],188:[function(require,module,exports){
-module.exports = require("./lib/polyfill");
-
-},{"./lib/polyfill":6}],189:[function(require,module,exports){
-module.exports = require("babel-core/polyfill");
-
-},{"babel-core/polyfill":188}],190:[function(require,module,exports){
-// shim for using process in browser
-
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    draining = true;
-    var currentQueue;
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        var i = -1;
-        while (++i < len) {
-            currentQueue[i]();
-        }
-        len = queue.length;
-    }
-    draining = false;
-}
-process.nextTick = function (fun) {
-    queue.push(fun);
-    if (!draining) {
-        setTimeout(drainQueue, 0);
-    }
-};
-
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
-
-// TODO(shtylman)
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
-
-},{}]},{},[3])(3)
-});
\ No newline at end of file
+};
+},{"./$.defined":21,"./$.iobject":35}],77:[function(require,module,exports){
+// 7.1.15 ToLength
+var toInteger = require('./$.to-integer')
+  , min       = Math.min;
+module.exports = function(it){
+  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
+};
+},{"./$.to-integer":75}],78:[function(require,module,exports){
+// 7.1.13 ToObject(argument)
+var defined = require('./$.defined');
+module.exports = function(it){
+  return Object(defined(it));
+};
+},{"./$.defined":21}],79:[function(require,module,exports){
+var id = 0
+  , px = Math.random();
+module.exports = function(key){
+  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
+};
+},{}],80:[function(require,module,exports){
+// 22.1.3.31 Array.prototype[@@unscopables]
+var UNSCOPABLES = require('./$.wks')('unscopables');
+if(!(UNSCOPABLES in []))require('./$.hide')(Array.prototype, UNSCOPABLES, {});
+module.exports = function(key){
+  [][UNSCOPABLES][key] = true;
+};
+},{"./$.hide":32,"./$.wks":81}],81:[function(require,module,exports){
+var store  = require('./$.shared')('wks')
+  , Symbol = require('./$.global').Symbol;
+module.exports = function(name){
+  return store[name] || (store[name] =
+    Symbol && Symbol[name] || (Symbol || require('./$.uid'))('Symbol.' + name));
+};
+},{"./$.global":30,"./$.shared":62,"./$.uid":79}],82:[function(require,module,exports){
+var classof   = require('./$.classof')
+  , ITERATOR  = require('./$.wks')('iterator')
+  , Iterators = require('./$.iterators');
+module.exports = require('./$.core').getIteratorMethod = function(it){
+  if(it != undefined)return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
+};
+},{"./$.classof":12,"./$.core":18,"./$.iterators":45,"./$.wks":81}],83:[function(require,module,exports){
+'use strict';
+var $                = require('./$')
+  , SUPPORT_DESC     = require('./$.support-desc')
+  , createDesc       = require('./$.property-desc')
+  , html             = require('./$.html')
+  , cel              = require('./$.dom-create')
+  , has              = require('./$.has')
+  , cof              = require('./$.cof')
+  , $def             = require('./$.def')
+  , invoke           = require('./$.invoke')
+  , arrayMethod      = require('./$.array-methods')
+  , IE_PROTO         = require('./$.uid')('__proto__')
+  , isObject         = require('./$.is-object')
+  , anObject         = require('./$.an-object')
+  , aFunction        = require('./$.a-function')
+  , toObject         = require('./$.to-object')
+  , toIObject        = require('./$.to-iobject')
+  , toInteger        = require('./$.to-integer')
+  , toIndex          = require('./$.to-index')
+  , toLength         = require('./$.to-length')
+  , IObject          = require('./$.iobject')
+  , fails            = require('./$.fails')
+  , ObjectProto      = Object.prototype
+  , A                = []
+  , _slice           = A.slice
+  , _join            = A.join
+  , defineProperty   = $.setDesc
+  , getOwnDescriptor = $.getDesc
+  , defineProperties = $.setDescs
+  , $indexOf         = require('./$.array-includes')(false)
+  , factories        = {}
+  , IE8_DOM_DEFINE;
+
+if(!SUPPORT_DESC){
+  IE8_DOM_DEFINE = !fails(function(){
+    return defineProperty(cel('div'), 'a', {get: function(){ return 7; }}).a != 7;
+  });
+  $.setDesc = function(O, P, Attributes){
+    if(IE8_DOM_DEFINE)try {
+      return defineProperty(O, P, Attributes);
+    } catch(e){ /* empty */ }
+    if('get' in Attributes || 'set' in Attributes)throw TypeError('Accessors not supported!');
+    if('value' in Attributes)anObject(O)[P] = Attributes.value;
+    return O;
+  };
+  $.getDesc = function(O, P){
+    if(IE8_DOM_DEFINE)try {
+      return getOwnDescriptor(O, P);
+    } catch(e){ /* empty */ }
+    if(has(O, P))return createDesc(!ObjectProto.propertyIsEnumerable.call(O, P), O[P]);
+  };
+  $.setDescs = defineProperties = function(O, Properties){
+    anObject(O);
+    var keys   = $.getKeys(Properties)
+      , length = keys.length
+      , i = 0
+      , P;
+    while(length > i)$.setDesc(O, P = keys[i++], Properties[P]);
+    return O;
+  };
+}
+$def($def.S + $def.F * !SUPPORT_DESC, 'Object', {
+  // 19.1.2.6 / 15.2.3.3 Object.getOwnPropertyDescriptor(O, P)
+  getOwnPropertyDescriptor: $.getDesc,
+  // 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)
+  defineProperty: $.setDesc,
+  // 19.1.2.3 / 15.2.3.7 Object.defineProperties(O, Properties)
+  defineProperties: defineProperties
+});
+
+  // IE 8- don't enum bug keys
+var keys1 = ('constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,' +
+            'toLocaleString,toString,valueOf').split(',')
+  // Additional keys for getOwnPropertyNames
+  , keys2 = keys1.concat('length', 'prototype')
+  , keysLen1 = keys1.length;
+
+// Create object with `null` prototype: use iframe Object with cleared prototype
+var createDict = function(){
+  // Thrash, waste and sodomy: IE GC bug
+  var iframe = cel('iframe')
+    , i      = keysLen1
+    , gt     = '>'
+    , iframeDocument;
+  iframe.style.display = 'none';
+  html.appendChild(iframe);
+  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
+  // createDict = iframe.contentWindow.Object;
+  // html.removeChild(iframe);
+  iframeDocument = iframe.contentWindow.document;
+  iframeDocument.open();
+  iframeDocument.write('<script>document.F=Object</script' + gt);
+  iframeDocument.close();
+  createDict = iframeDocument.F;
+  while(i--)delete createDict.prototype[keys1[i]];
+  return createDict();
+};
+var createGetKeys = function(names, length){
+  return function(object){
+    var O      = toIObject(object)
+      , i      = 0
+      , result = []
+      , key;
+    for(key in O)if(key != IE_PROTO)has(O, key) && result.push(key);
+    // Don't enum bug & hidden keys
+    while(length > i)if(has(O, key = names[i++])){
+      ~$indexOf(result, key) || result.push(key);
+    }
+    return result;
+  };
+};
+var Empty = function(){};
+$def($def.S, 'Object', {
+  // 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
+  getPrototypeOf: $.getProto = $.getProto || function(O){
+    O = toObject(O);
+    if(has(O, IE_PROTO))return O[IE_PROTO];
+    if(typeof O.constructor == 'function' && O instanceof O.constructor){
+      return O.constructor.prototype;
+    } return O instanceof Object ? ObjectProto : null;
+  },
+  // 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
+  getOwnPropertyNames: $.getNames = $.getNames || createGetKeys(keys2, keys2.length, true),
+  // 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
+  create: $.create = $.create || function(O, /*?*/Properties){
+    var result;
+    if(O !== null){
+      Empty.prototype = anObject(O);
+      result = new Empty();
+      Empty.prototype = null;
+      // add "__proto__" for Object.getPrototypeOf shim
+      result[IE_PROTO] = O;
+    } else result = createDict();
+    return Properties === undefined ? result : defineProperties(result, Properties);
+  },
+  // 19.1.2.14 / 15.2.3.14 Object.keys(O)
+  keys: $.getKeys = $.getKeys || createGetKeys(keys1, keysLen1, false)
+});
+
+var construct = function(F, len, args){
+  if(!(len in factories)){
+    for(var n = [], i = 0; i < len; i++)n[i] = 'a[' + i + ']';
+    factories[len] = Function('F,a', 'return new F(' + n.join(',') + ')');
+  }
+  return factories[len](F, args);
+};
+
+// 19.2.3.2 / 15.3.4.5 Function.prototype.bind(thisArg, args...)
+$def($def.P, 'Function', {
+  bind: function bind(that /*, args... */){
+    var fn       = aFunction(this)
+      , partArgs = _slice.call(arguments, 1);
+    var bound = function(/* args... */){
+      var args = partArgs.concat(_slice.call(arguments));
+      return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);
+    };
+    if(isObject(fn.prototype))bound.prototype = fn.prototype;
+    return bound;
+  }
+});
+
+// fallback for not array-like ES3 strings and DOM objects
+var buggySlice = fails(function(){
+  if(html)_slice.call(html);
+});
+
+$def($def.P + $def.F * buggySlice, 'Array', {
+  slice: function(begin, end){
+    var len   = toLength(this.length)
+      , klass = cof(this);
+    end = end === undefined ? len : end;
+    if(klass == 'Array')return _slice.call(this, begin, end);
+    var start  = toIndex(begin, len)
+      , upTo   = toIndex(end, len)
+      , size   = toLength(upTo - start)
+      , cloned = Array(size)
+      , i      = 0;
+    for(; i < size; i++)cloned[i] = klass == 'String'
+      ? this.charAt(start + i)
+      : this[start + i];
+    return cloned;
+  }
+});
+$def($def.P + $def.F * (IObject != Object), 'Array', {
+  join: function(){
+    return _join.apply(IObject(this), arguments);
+  }
+});
+
+// 22.1.2.2 / 15.4.3.2 Array.isArray(arg)
+$def($def.S, 'Array', {isArray: function(arg){ return cof(arg) == 'Array'; }});
+
+var createArrayReduce = function(isRight){
+  return function(callbackfn, memo){
+    aFunction(callbackfn);
+    var O      = IObject(this)
+      , length = toLength(O.length)
+      , index  = isRight ? length - 1 : 0
+      , i      = isRight ? -1 : 1;
+    if(arguments.length < 2)for(;;){
+      if(index in O){
+        memo = O[index];
+        index += i;
+        break;
+      }
+      index += i;
+      if(isRight ? index < 0 : length <= index){
+        throw TypeError('Reduce of empty array with no initial value');
+      }
+    }
+    for(;isRight ? index >= 0 : length > index; index += i)if(index in O){
+      memo = callbackfn(memo, O[index], index, this);
+    }
+    return memo;
+  };
+};
+var methodize = function($fn){
+  return function(arg1/*, arg2 = undefined */){
+    return $fn(this, arg1, arguments[1]);
+  };
+};
+$def($def.P, 'Array', {
+  // 22.1.3.10 / 15.4.4.18 Array.prototype.forEach(callbackfn [, thisArg])
+  forEach: $.each = $.each || methodize(arrayMethod(0)),
+  // 22.1.3.15 / 15.4.4.19 Array.prototype.map(callbackfn [, thisArg])
+  map: methodize(arrayMethod(1)),
+  // 22.1.3.7 / 15.4.4.20 Array.prototype.filter(callbackfn [, thisArg])
+  filter: methodize(arrayMethod(2)),
+  // 22.1.3.23 / 15.4.4.17 Array.prototype.some(callbackfn [, thisArg])
+  some: methodize(arrayMethod(3)),
+  // 22.1.3.5 / 15.4.4.16 Array.prototype.every(callbackfn [, thisArg])
+  every: methodize(arrayMethod(4)),
+  // 22.1.3.18 / 15.4.4.21 Array.prototype.reduce(callbackfn [, initialValue])
+  reduce: createArrayReduce(false),
+  // 22.1.3.19 / 15.4.4.22 Array.prototype.reduceRight(callbackfn [, initialValue])
+  reduceRight: createArrayReduce(true),
+  // 22.1.3.11 / 15.4.4.14 Array.prototype.indexOf(searchElement [, fromIndex])
+  indexOf: methodize($indexOf),
+  // 22.1.3.14 / 15.4.4.15 Array.prototype.lastIndexOf(searchElement [, fromIndex])
+  lastIndexOf: function(el, fromIndex /* = @[*-1] */){
+    var O      = toIObject(this)
+      , length = toLength(O.length)
+      , index  = length - 1;
+    if(arguments.length > 1)index = Math.min(index, toInteger(fromIndex));
+    if(index < 0)index = toLength(length + index);
+    for(;index >= 0; index--)if(index in O)if(O[index] === el)return index;
+    return -1;
+  }
+});
+
+// 20.3.3.1 / 15.9.4.4 Date.now()
+$def($def.S, 'Date', {now: function(){ return +new Date; }});
+
+var lz = function(num){
+  return num > 9 ? num : '0' + num;
+};
+
+// 20.3.4.36 / 15.9.5.43 Date.prototype.toISOString()
+// PhantomJS and old webkit had a broken Date implementation.
+var date       = new Date(-5e13 - 1)
+  , brokenDate = !(date.toISOString && date.toISOString() == '0385-07-25T07:06:39.999Z'
+      && fails(function(){ new Date(NaN).toISOString(); }));
+$def($def.P + $def.F * brokenDate, 'Date', {
+  toISOString: function toISOString(){
+    if(!isFinite(this))throw RangeError('Invalid time value');
+    var d = this
+      , y = d.getUTCFullYear()
+      , m = d.getUTCMilliseconds()
+      , s = y < 0 ? '-' : y > 9999 ? '+' : '';
+    return s + ('00000' + Math.abs(y)).slice(s ? -6 : -4) +
+      '-' + lz(d.getUTCMonth() + 1) + '-' + lz(d.getUTCDate()) +
+      'T' + lz(d.getUTCHours()) + ':' + lz(d.getUTCMinutes()) +
+      ':' + lz(d.getUTCSeconds()) + '.' + (m > 99 ? m : '0' + lz(m)) + 'Z';
+  }
+});
+},{"./$":46,"./$.a-function":7,"./$.an-object":8,"./$.array-includes":9,"./$.array-methods":10,"./$.cof":13,"./$.def":20,"./$.dom-create":22,"./$.fails":25,"./$.has":31,"./$.html":33,"./$.invoke":34,"./$.iobject":35,"./$.is-object":38,"./$.property-desc":57,"./$.support-desc":71,"./$.to-index":74,"./$.to-integer":75,"./$.to-iobject":76,"./$.to-length":77,"./$.to-object":78,"./$.uid":79}],84:[function(require,module,exports){
+'use strict';
+var $def     = require('./$.def')
+  , toObject = require('./$.to-object')
+  , toIndex  = require('./$.to-index')
+  , toLength = require('./$.to-length');
+$def($def.P, 'Array', {
+  // 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)
+  copyWithin: function copyWithin(target/* = 0 */, start /* = 0, end = @length */){
+    var O     = toObject(this)
+      , len   = toLength(O.length)
+      , to    = toIndex(target, len)
+      , from  = toIndex(start, len)
+      , end   = arguments[2]
+      , fin   = end === undefined ? len : toIndex(end, len)
+      , count = Math.min(fin - from, len - to)
+      , inc   = 1;
+    if(from < to && to < from + count){
+      inc  = -1;
+      from = from + count - 1;
+      to   = to   + count - 1;
+    }
+    while(count-- > 0){
+      if(from in O)O[to] = O[from];
+      else delete O[to];
+      to   += inc;
+      from += inc;
+    } return O;
+  }
+});
+require('./$.unscope')('copyWithin');
+},{"./$.def":20,"./$.to-index":74,"./$.to-length":77,"./$.to-object":78,"./$.unscope":80}],85:[function(require,module,exports){
+'use strict';
+var $def     = require('./$.def')
+  , toObject = require('./$.to-object')
+  , toIndex  = require('./$.to-index')
+  , toLength = require('./$.to-length');
+$def($def.P, 'Array', {
+  // 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)
+  fill: function fill(value /*, start = 0, end = @length */){
+    var O      = toObject(this, true)
+      , length = toLength(O.length)
+      , index  = toIndex(arguments[1], length)
+      , end    = arguments[2]
+      , endPos = end === undefined ? length : toIndex(end, length);
+    while(endPos > index)O[index++] = value;
+    return O;
+  }
+});
+require('./$.unscope')('fill');
+},{"./$.def":20,"./$.to-index":74,"./$.to-length":77,"./$.to-object":78,"./$.unscope":80}],86:[function(require,module,exports){
+'use strict';
+// 22.1.3.9 Array.prototype.findIndex(predicate, thisArg = undefined)
+var KEY    = 'findIndex'
+  , $def   = require('./$.def')
+  , forced = true
+  , $find  = require('./$.array-methods')(6);
+// Shouldn't skip holes
+if(KEY in [])Array(1)[KEY](function(){ forced = false; });
+$def($def.P + $def.F * forced, 'Array', {
+  findIndex: function findIndex(callbackfn/*, that = undefined */){
+    return $find(this, callbackfn, arguments[1]);
+  }
+});
+require('./$.unscope')(KEY);
+},{"./$.array-methods":10,"./$.def":20,"./$.unscope":80}],87:[function(require,module,exports){
+'use strict';
+// 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)
+var KEY    = 'find'
+  , $def   = require('./$.def')
+  , forced = true
+  , $find  = require('./$.array-methods')(5);
+// Shouldn't skip holes
+if(KEY in [])Array(1)[KEY](function(){ forced = false; });
+$def($def.P + $def.F * forced, 'Array', {
+  find: function find(callbackfn/*, that = undefined */){
+    return $find(this, callbackfn, arguments[1]);
+  }
+});
+require('./$.unscope')(KEY);
+},{"./$.array-methods":10,"./$.def":20,"./$.unscope":80}],88:[function(require,module,exports){
+'use strict';
+var ctx         = require('./$.ctx')
+  , $def        = require('./$.def')
+  , toObject    = require('./$.to-object')
+  , call        = require('./$.iter-call')
+  , isArrayIter = require('./$.is-array-iter')
+  , toLength    = require('./$.to-length')
+  , getIterFn   = require('./core.get-iterator-method');
+$def($def.S + $def.F * !require('./$.iter-detect')(function(iter){ Array.from(iter); }), 'Array', {
+  // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
+  from: function from(arrayLike/*, mapfn = undefined, thisArg = undefined*/){
+    var O       = toObject(arrayLike)
+      , C       = typeof this == 'function' ? this : Array
+      , mapfn   = arguments[1]
+      , mapping = mapfn !== undefined
+      , index   = 0
+      , iterFn  = getIterFn(O)
+      , length, result, step, iterator;
+    if(mapping)mapfn = ctx(mapfn, arguments[2], 2);
+    // if object isn't iterable or it's array with default iterator - use simple case
+    if(iterFn != undefined && !(C == Array && isArrayIter(iterFn))){
+      for(iterator = iterFn.call(O), result = new C; !(step = iterator.next()).done; index++){
+        result[index] = mapping ? call(iterator, mapfn, [step.value, index], true) : step.value;
+      }
+    } else {
+      for(result = new C(length = toLength(O.length)); length > index; index++){
+        result[index] = mapping ? mapfn(O[index], index) : O[index];
+      }
+    }
+    result.length = index;
+    return result;
+  }
+});
+},{"./$.ctx":19,"./$.def":20,"./$.is-array-iter":36,"./$.iter-call":40,"./$.iter-detect":43,"./$.to-length":77,"./$.to-object":78,"./core.get-iterator-method":82}],89:[function(require,module,exports){
+'use strict';
+var setUnscope = require('./$.unscope')
+  , step       = require('./$.iter-step')
+  , Iterators  = require('./$.iterators')
+  , toIObject  = require('./$.to-iobject');
+
+// 22.1.3.4 Array.prototype.entries()
+// 22.1.3.13 Array.prototype.keys()
+// 22.1.3.29 Array.prototype.values()
+// 22.1.3.30 Array.prototype[@@iterator]()
+require('./$.iter-define')(Array, 'Array', function(iterated, kind){
+  this._t = toIObject(iterated); // target
+  this._i = 0;                   // next index
+  this._k = kind;                // kind
+// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
+}, function(){
+  var O     = this._t
+    , kind  = this._k
+    , index = this._i++;
+  if(!O || index >= O.length){
+    this._t = undefined;
+    return step(1);
+  }
+  if(kind == 'keys'  )return step(0, index);
+  if(kind == 'values')return step(0, O[index]);
+  return step(0, [index, O[index]]);
+}, 'values');
+
+// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
+Iterators.Arguments = Iterators.Array;
+
+setUnscope('keys');
+setUnscope('values');
+setUnscope('entries');
+},{"./$.iter-define":42,"./$.iter-step":44,"./$.iterators":45,"./$.to-iobject":76,"./$.unscope":80}],90:[function(require,module,exports){
+'use strict';
+var $def = require('./$.def');
+$def($def.S, 'Array', {
+  // 22.1.2.3 Array.of( ...items)
+  of: function of(/* ...args */){
+    var index  = 0
+      , length = arguments.length
+      , result = new (typeof this == 'function' ? this : Array)(length);
+    while(length > index)result[index] = arguments[index++];
+    result.length = length;
+    return result;
+  }
+});
+},{"./$.def":20}],91:[function(require,module,exports){
+require('./$.species')(Array);
+},{"./$.species":64}],92:[function(require,module,exports){
+'use strict';
+var $             = require('./$')
+  , isObject      = require('./$.is-object')
+  , HAS_INSTANCE  = require('./$.wks')('hasInstance')
+  , FunctionProto = Function.prototype;
+// 19.2.3.6 Function.prototype[@@hasInstance](V)
+if(!(HAS_INSTANCE in FunctionProto))$.setDesc(FunctionProto, HAS_INSTANCE, {value: function(O){
+  if(typeof this != 'function' || !isObject(O))return false;
+  if(!isObject(this.prototype))return O instanceof this;
+  // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
+  while(O = $.getProto(O))if(this.prototype === O)return true;
+  return false;
+}});
+},{"./$":46,"./$.is-object":38,"./$.wks":81}],93:[function(require,module,exports){
+var setDesc    = require('./$').setDesc
+  , createDesc = require('./$.property-desc')
+  , has        = require('./$.has')
+  , FProto     = Function.prototype
+  , nameRE     = /^\s*function ([^ (]*)/
+  , NAME       = 'name';
+// 19.2.4.2 name
+NAME in FProto || require('./$.support-desc') && setDesc(FProto, NAME, {
+  configurable: true,
+  get: function(){
+    var match = ('' + this).match(nameRE)
+      , name  = match ? match[1] : '';
+    has(this, NAME) || setDesc(this, NAME, createDesc(5, name));
+    return name;
+  }
+});
+},{"./$":46,"./$.has":31,"./$.property-desc":57,"./$.support-desc":71}],94:[function(require,module,exports){
+'use strict';
+var strong = require('./$.collection-strong');
+
+// 23.1 Map Objects
+require('./$.collection')('Map', function(get){
+  return function Map(){ return get(this, arguments[0]); };
+}, {
+  // 23.1.3.6 Map.prototype.get(key)
+  get: function get(key){
+    var entry = strong.getEntry(this, key);
+    return entry && entry.v;
+  },
+  // 23.1.3.9 Map.prototype.set(key, value)
+  set: function set(key, value){
+    return strong.def(this, key === 0 ? 0 : key, value);
+  }
+}, strong, true);
+},{"./$.collection":17,"./$.collection-strong":14}],95:[function(require,module,exports){
+// 20.2.2.3 Math.acosh(x)
+var $def   = require('./$.def')
+  , log1p  = require('./$.log1p')
+  , sqrt   = Math.sqrt
+  , $acosh = Math.acosh;
+
+// V8 bug https://code.google.com/p/v8/issues/detail?id=3509 
+$def($def.S + $def.F * !($acosh && Math.floor($acosh(Number.MAX_VALUE)) == 710), 'Math', {
+  acosh: function acosh(x){
+    return (x = +x) < 1 ? NaN : x > 94906265.62425156
+      ? Math.log(x) + Math.LN2
+      : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
+  }
+});
+},{"./$.def":20,"./$.log1p":49}],96:[function(require,module,exports){
+// 20.2.2.5 Math.asinh(x)
+var $def = require('./$.def');
+
+function asinh(x){
+  return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : Math.log(x + Math.sqrt(x * x + 1));
+}
+
+$def($def.S, 'Math', {asinh: asinh});
+},{"./$.def":20}],97:[function(require,module,exports){
+// 20.2.2.7 Math.atanh(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {
+  atanh: function atanh(x){
+    return (x = +x) == 0 ? x : Math.log((1 + x) / (1 - x)) / 2;
+  }
+});
+},{"./$.def":20}],98:[function(require,module,exports){
+// 20.2.2.9 Math.cbrt(x)
+var $def = require('./$.def')
+  , sign = require('./$.sign');
+
+$def($def.S, 'Math', {
+  cbrt: function cbrt(x){
+    return sign(x = +x) * Math.pow(Math.abs(x), 1 / 3);
+  }
+});
+},{"./$.def":20,"./$.sign":63}],99:[function(require,module,exports){
+// 20.2.2.11 Math.clz32(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {
+  clz32: function clz32(x){
+    return (x >>>= 0) ? 31 - Math.floor(Math.log(x + 0.5) * Math.LOG2E) : 32;
+  }
+});
+},{"./$.def":20}],100:[function(require,module,exports){
+// 20.2.2.12 Math.cosh(x)
+var $def = require('./$.def')
+  , exp  = Math.exp;
+
+$def($def.S, 'Math', {
+  cosh: function cosh(x){
+    return (exp(x = +x) + exp(-x)) / 2;
+  }
+});
+},{"./$.def":20}],101:[function(require,module,exports){
+// 20.2.2.14 Math.expm1(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {expm1: require('./$.expm1')});
+},{"./$.def":20,"./$.expm1":24}],102:[function(require,module,exports){
+// 20.2.2.16 Math.fround(x)
+var $def  = require('./$.def')
+  , sign  = require('./$.sign')
+  , pow   = Math.pow
+  , EPSILON   = pow(2, -52)
+  , EPSILON32 = pow(2, -23)
+  , MAX32     = pow(2, 127) * (2 - EPSILON32)
+  , MIN32     = pow(2, -126);
+
+var roundTiesToEven = function(n){
+  return n + 1 / EPSILON - 1 / EPSILON;
+};
+
+
+$def($def.S, 'Math', {
+  fround: function fround(x){
+    var $abs  = Math.abs(x)
+      , $sign = sign(x)
+      , a, result;
+    if($abs < MIN32)return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;
+    a = (1 + EPSILON32 / EPSILON) * $abs;
+    result = a - (a - $abs);
+    if(result > MAX32 || result != result)return $sign * Infinity;
+    return $sign * result;
+  }
+});
+},{"./$.def":20,"./$.sign":63}],103:[function(require,module,exports){
+// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])
+var $def = require('./$.def')
+  , abs  = Math.abs;
+
+$def($def.S, 'Math', {
+  hypot: function hypot(value1, value2){ // eslint-disable-line no-unused-vars
+    var sum  = 0
+      , i    = 0
+      , len  = arguments.length
+      , larg = 0
+      , arg, div;
+    while(i < len){
+      arg = abs(arguments[i++]);
+      if(larg < arg){
+        div  = larg / arg;
+        sum  = sum * div * div + 1;
+        larg = arg;
+      } else if(arg > 0){
+        div  = arg / larg;
+        sum += div * div;
+      } else sum += arg;
+    }
+    return larg === Infinity ? Infinity : larg * Math.sqrt(sum);
+  }
+});
+},{"./$.def":20}],104:[function(require,module,exports){
+// 20.2.2.18 Math.imul(x, y)
+var $def = require('./$.def');
+
+// WebKit fails with big numbers
+$def($def.S + $def.F * require('./$.fails')(function(){
+  return Math.imul(0xffffffff, 5) != -5;
+}), 'Math', {
+  imul: function imul(x, y){
+    var UINT16 = 0xffff
+      , xn = +x
+      , yn = +y
+      , xl = UINT16 & xn
+      , yl = UINT16 & yn;
+    return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);
+  }
+});
+},{"./$.def":20,"./$.fails":25}],105:[function(require,module,exports){
+// 20.2.2.21 Math.log10(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {
+  log10: function log10(x){
+    return Math.log(x) / Math.LN10;
+  }
+});
+},{"./$.def":20}],106:[function(require,module,exports){
+// 20.2.2.20 Math.log1p(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {log1p: require('./$.log1p')});
+},{"./$.def":20,"./$.log1p":49}],107:[function(require,module,exports){
+// 20.2.2.22 Math.log2(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {
+  log2: function log2(x){
+    return Math.log(x) / Math.LN2;
+  }
+});
+},{"./$.def":20}],108:[function(require,module,exports){
+// 20.2.2.28 Math.sign(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {sign: require('./$.sign')});
+},{"./$.def":20,"./$.sign":63}],109:[function(require,module,exports){
+// 20.2.2.30 Math.sinh(x)
+var $def  = require('./$.def')
+  , expm1 = require('./$.expm1')
+  , exp   = Math.exp;
+
+$def($def.S, 'Math', {
+  sinh: function sinh(x){
+    return Math.abs(x = +x) < 1
+      ? (expm1(x) - expm1(-x)) / 2
+      : (exp(x - 1) - exp(-x - 1)) * (Math.E / 2);
+  }
+});
+},{"./$.def":20,"./$.expm1":24}],110:[function(require,module,exports){
+// 20.2.2.33 Math.tanh(x)
+var $def  = require('./$.def')
+  , expm1 = require('./$.expm1')
+  , exp   = Math.exp;
+
+$def($def.S, 'Math', {
+  tanh: function tanh(x){
+    var a = expm1(x = +x)
+      , b = expm1(-x);
+    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));
+  }
+});
+},{"./$.def":20,"./$.expm1":24}],111:[function(require,module,exports){
+// 20.2.2.34 Math.trunc(x)
+var $def = require('./$.def');
+
+$def($def.S, 'Math', {
+  trunc: function trunc(it){
+    return (it > 0 ? Math.floor : Math.ceil)(it);
+  }
+});
+},{"./$.def":20}],112:[function(require,module,exports){
+'use strict';
+var $          = require('./$')
+  , global     = require('./$.global')
+  , has        = require('./$.has')
+  , cof        = require('./$.cof')
+  , isObject   = require('./$.is-object')
+  , fails      = require('./$.fails')
+  , NUMBER     = 'Number'
+  , $Number    = global[NUMBER]
+  , Base       = $Number
+  , proto      = $Number.prototype
+  // Opera ~12 has broken Object#toString
+  , BROKEN_COF = cof($.create(proto)) == NUMBER;
+var toPrimitive = function(it){
+  var fn, val;
+  if(typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it)))return val;
+  if(typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it)))return val;
+  throw TypeError("Can't convert object to number");
+};
+var toNumber = function(it){
+  if(isObject(it))it = toPrimitive(it);
+  if(typeof it == 'string' && it.length > 2 && it.charCodeAt(0) == 48){
+    var binary = false;
+    switch(it.charCodeAt(1)){
+      case 66 : case 98  : binary = true;
+      case 79 : case 111 : return parseInt(it.slice(2), binary ? 2 : 8);
+    }
+  } return +it;
+};
+if(!($Number('0o1') && $Number('0b1'))){
+  $Number = function Number(it){
+    var that = this;
+    return that instanceof $Number
+      // check on 1..constructor(foo) case
+      && (BROKEN_COF ? fails(function(){ proto.valueOf.call(that); }) : cof(that) != NUMBER)
+        ? new Base(toNumber(it)) : toNumber(it);
+  };
+  $.each.call(require('./$.support-desc') ? $.getNames(Base) : (
+      // ES3:
+      'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
+      // ES6 (in case, if modules with ES6 Number statics required before):
+      'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
+      'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'
+    ).split(','), function(key){
+      if(has(Base, key) && !has($Number, key)){
+        $.setDesc($Number, key, $.getDesc(Base, key));
+      }
+    }
+  );
+  $Number.prototype = proto;
+  proto.constructor = $Number;
+  require('./$.redef')(global, NUMBER, $Number);
+}
+},{"./$":46,"./$.cof":13,"./$.fails":25,"./$.global":30,"./$.has":31,"./$.is-object":38,"./$.redef":58,"./$.support-desc":71}],113:[function(require,module,exports){
+// 20.1.2.1 Number.EPSILON
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {EPSILON: Math.pow(2, -52)});
+},{"./$.def":20}],114:[function(require,module,exports){
+// 20.1.2.2 Number.isFinite(number)
+var $def      = require('./$.def')
+  , _isFinite = require('./$.global').isFinite;
+
+$def($def.S, 'Number', {
+  isFinite: function isFinite(it){
+    return typeof it == 'number' && _isFinite(it);
+  }
+});
+},{"./$.def":20,"./$.global":30}],115:[function(require,module,exports){
+// 20.1.2.3 Number.isInteger(number)
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {isInteger: require('./$.is-integer')});
+},{"./$.def":20,"./$.is-integer":37}],116:[function(require,module,exports){
+// 20.1.2.4 Number.isNaN(number)
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {
+  isNaN: function isNaN(number){
+    return number != number;
+  }
+});
+},{"./$.def":20}],117:[function(require,module,exports){
+// 20.1.2.5 Number.isSafeInteger(number)
+var $def      = require('./$.def')
+  , isInteger = require('./$.is-integer')
+  , abs       = Math.abs;
+
+$def($def.S, 'Number', {
+  isSafeInteger: function isSafeInteger(number){
+    return isInteger(number) && abs(number) <= 0x1fffffffffffff;
+  }
+});
+},{"./$.def":20,"./$.is-integer":37}],118:[function(require,module,exports){
+// 20.1.2.6 Number.MAX_SAFE_INTEGER
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {MAX_SAFE_INTEGER: 0x1fffffffffffff});
+},{"./$.def":20}],119:[function(require,module,exports){
+// 20.1.2.10 Number.MIN_SAFE_INTEGER
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {MIN_SAFE_INTEGER: -0x1fffffffffffff});
+},{"./$.def":20}],120:[function(require,module,exports){
+// 20.1.2.12 Number.parseFloat(string)
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {parseFloat: parseFloat});
+},{"./$.def":20}],121:[function(require,module,exports){
+// 20.1.2.13 Number.parseInt(string, radix)
+var $def = require('./$.def');
+
+$def($def.S, 'Number', {parseInt: parseInt});
+},{"./$.def":20}],122:[function(require,module,exports){
+// 19.1.3.1 Object.assign(target, source)
+var $def = require('./$.def');
+$def($def.S, 'Object', {assign: require('./$.assign')});
+},{"./$.assign":11,"./$.def":20}],123:[function(require,module,exports){
+// 19.1.2.5 Object.freeze(O)
+var isObject = require('./$.is-object');
+
+require('./$.object-sap')('freeze', function($freeze){
+  return function freeze(it){
+    return $freeze && isObject(it) ? $freeze(it) : it;
+  };
+});
+},{"./$.is-object":38,"./$.object-sap":52}],124:[function(require,module,exports){
+// 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
+var toIObject = require('./$.to-iobject');
+
+require('./$.object-sap')('getOwnPropertyDescriptor', function($getOwnPropertyDescriptor){
+  return function getOwnPropertyDescriptor(it, key){
+    return $getOwnPropertyDescriptor(toIObject(it), key);
+  };
+});
+},{"./$.object-sap":52,"./$.to-iobject":76}],125:[function(require,module,exports){
+// 19.1.2.7 Object.getOwnPropertyNames(O)
+require('./$.object-sap')('getOwnPropertyNames', function(){
+  return require('./$.get-names').get;
+});
+},{"./$.get-names":29,"./$.object-sap":52}],126:[function(require,module,exports){
+// 19.1.2.9 Object.getPrototypeOf(O)
+var toObject = require('./$.to-object');
+
+require('./$.object-sap')('getPrototypeOf', function($getPrototypeOf){
+  return function getPrototypeOf(it){
+    return $getPrototypeOf(toObject(it));
+  };
+});
+},{"./$.object-sap":52,"./$.to-object":78}],127:[function(require,module,exports){
+// 19.1.2.11 Object.isExtensible(O)
+var isObject = require('./$.is-object');
+
+require('./$.object-sap')('isExtensible', function($isExtensible){
+  return function isExtensible(it){
+    return isObject(it) ? $isExtensible ? $isExtensible(it) : true : false;
+  };
+});
+},{"./$.is-object":38,"./$.object-sap":52}],128:[function(require,module,exports){
+// 19.1.2.12 Object.isFrozen(O)
+var isObject = require('./$.is-object');
+
+require('./$.object-sap')('isFrozen', function($isFrozen){
+  return function isFrozen(it){
+    return isObject(it) ? $isFrozen ? $isFrozen(it) : false : true;
+  };
+});
+},{"./$.is-object":38,"./$.object-sap":52}],129:[function(require,module,exports){
+// 19.1.2.13 Object.isSealed(O)
+var isObject = require('./$.is-object');
+
+require('./$.object-sap')('isSealed', function($isSealed){
+  return function isSealed(it){
+    return isObject(it) ? $isSealed ? $isSealed(it) : false : true;
+  };
+});
+},{"./$.is-object":38,"./$.object-sap":52}],130:[function(require,module,exports){
+// 19.1.3.10 Object.is(value1, value2)
+var $def = require('./$.def');
+$def($def.S, 'Object', {
+  is: require('./$.same')
+});
+},{"./$.def":20,"./$.same":60}],131:[function(require,module,exports){
+// 19.1.2.14 Object.keys(O)
+var toObject = require('./$.to-object');
+
+require('./$.object-sap')('keys', function($keys){
+  return function keys(it){
+    return $keys(toObject(it));
+  };
+});
+},{"./$.object-sap":52,"./$.to-object":78}],132:[function(require,module,exports){
+// 19.1.2.15 Object.preventExtensions(O)
+var isObject = require('./$.is-object');
+
+require('./$.object-sap')('preventExtensions', function($preventExtensions){
+  return function preventExtensions(it){
+    return $preventExtensions && isObject(it) ? $preventExtensions(it) : it;
+  };
+});
+},{"./$.is-object":38,"./$.object-sap":52}],133:[function(require,module,exports){
+// 19.1.2.17 Object.seal(O)
+var isObject = require('./$.is-object');
+
+require('./$.object-sap')('seal', function($seal){
+  return function seal(it){
+    return $seal && isObject(it) ? $seal(it) : it;
+  };
+});
+},{"./$.is-object":38,"./$.object-sap":52}],134:[function(require,module,exports){
+// 19.1.3.19 Object.setPrototypeOf(O, proto)
+var $def = require('./$.def');
+$def($def.S, 'Object', {setPrototypeOf: require('./$.set-proto').set});
+},{"./$.def":20,"./$.set-proto":61}],135:[function(require,module,exports){
+'use strict';
+// 19.1.3.6 Object.prototype.toString()
+var classof = require('./$.classof')
+  , test    = {};
+test[require('./$.wks')('toStringTag')] = 'z';
+if(test + '' != '[object z]'){
+  require('./$.redef')(Object.prototype, 'toString', function toString(){
+    return '[object ' + classof(this) + ']';
+  }, true);
+}
+},{"./$.classof":12,"./$.redef":58,"./$.wks":81}],136:[function(require,module,exports){
+'use strict';
+var $          = require('./$')
+  , LIBRARY    = require('./$.library')
+  , global     = require('./$.global')
+  , ctx        = require('./$.ctx')
+  , classof    = require('./$.classof')
+  , $def       = require('./$.def')
+  , isObject   = require('./$.is-object')
+  , anObject   = require('./$.an-object')
+  , aFunction  = require('./$.a-function')
+  , strictNew  = require('./$.strict-new')
+  , forOf      = require('./$.for-of')
+  , setProto   = require('./$.set-proto').set
+  , same       = require('./$.same')
+  , species    = require('./$.species')
+  , SPECIES    = require('./$.wks')('species')
+  , RECORD     = require('./$.uid')('record')
+  , asap       = require('./$.microtask')
+  , PROMISE    = 'Promise'
+  , process    = global.process
+  , isNode     = classof(process) == 'process'
+  , P          = global[PROMISE]
+  , Wrapper;
+
+var testResolve = function(sub){
+  var test = new P(function(){});
+  if(sub)test.constructor = Object;
+  return P.resolve(test) === test;
+};
+
+var useNative = function(){
+  var works = false;
+  function P2(x){
+    var self = new P(x);
+    setProto(self, P2.prototype);
+    return self;
+  }
+  try {
+    works = P && P.resolve && testResolve();
+    setProto(P2, P);
+    P2.prototype = $.create(P.prototype, {constructor: {value: P2}});
+    // actual Firefox has broken subclass support, test that
+    if(!(P2.resolve(5).then(function(){}) instanceof P2)){
+      works = false;
+    }
+    // actual V8 bug, https://code.google.com/p/v8/issues/detail?id=4162
+    if(works && require('./$.support-desc')){
+      var thenableThenGotten = false;
+      P.resolve($.setDesc({}, 'then', {
+        get: function(){ thenableThenGotten = true; }
+      }));
+      works = thenableThenGotten;
+    }
+  } catch(e){ works = false; }
+  return works;
+}();
+
+// helpers
+var isPromise = function(it){
+  return isObject(it) && (useNative ? classof(it) == 'Promise' : RECORD in it);
+};
+var sameConstructor = function(a, b){
+  // library wrapper special case
+  if(LIBRARY && a === P && b === Wrapper)return true;
+  return same(a, b);
+};
+var getConstructor = function(C){
+  var S = anObject(C)[SPECIES];
+  return S != undefined ? S : C;
+};
+var isThenable = function(it){
+  var then;
+  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
+};
+var notify = function(record, isReject){
+  if(record.n)return;
+  record.n = true;
+  var chain = record.c;
+  asap(function(){
+    var value = record.v
+      , ok    = record.s == 1
+      , i     = 0;
+    var run = function(react){
+      var cb = ok ? react.ok : react.fail
+        , ret, then;
+      try {
+        if(cb){
+          if(!ok)record.h = true;
+          ret = cb === true ? value : cb(value);
+          if(ret === react.P){
+            react.rej(TypeError('Promise-chain cycle'));
+          } else if(then = isThenable(ret)){
+            then.call(ret, react.res, react.rej);
+          } else react.res(ret);
+        } else react.rej(value);
+      } catch(err){
+        react.rej(err);
+      }
+    };
+    while(chain.length > i)run(chain[i++]); // variable length - can't use forEach
+    chain.length = 0;
+    record.n = false;
+    if(isReject)setTimeout(function(){
+      asap(function(){
+        if(isUnhandled(record.p)){
+          if(isNode){
+            process.emit('unhandledRejection', value, record.p);
+          } else if(global.console && console.error){
+            console.error('Unhandled promise rejection', value);
+          }
+        }
+        record.a = undefined;
+      });
+    }, 1);
+  });
+};
+var isUnhandled = function(promise){
+  var record = promise[RECORD]
+    , chain  = record.a || record.c
+    , i      = 0
+    , react;
+  if(record.h)return false;
+  while(chain.length > i){
+    react = chain[i++];
+    if(react.fail || !isUnhandled(react.P))return false;
+  } return true;
+};
+var $reject = function(value){
+  var record = this;
+  if(record.d)return;
+  record.d = true;
+  record = record.r || record; // unwrap
+  record.v = value;
+  record.s = 2;
+  record.a = record.c.slice();
+  notify(record, true);
+};
+var $resolve = function(value){
+  var record = this
+    , then;
+  if(record.d)return;
+  record.d = true;
+  record = record.r || record; // unwrap
+  try {
+    if(then = isThenable(value)){
+      asap(function(){
+        var wrapper = {r: record, d: false}; // wrap
+        try {
+          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
+        } catch(e){
+          $reject.call(wrapper, e);
+        }
+      });
+    } else {
+      record.v = value;
+      record.s = 1;
+      notify(record, false);
+    }
+  } catch(e){
+    $reject.call({r: record, d: false}, e); // wrap
+  }
+};
+
+// constructor polyfill
+if(!useNative){
+  // 25.4.3.1 Promise(executor)
+  P = function Promise(executor){
+    aFunction(executor);
+    var record = {
+      p: strictNew(this, P, PROMISE),         // <- promise
+      c: [],                                  // <- awaiting reactions
+      a: undefined,                           // <- checked in isUnhandled reactions
+      s: 0,                                   // <- state
+      d: false,                               // <- done
+      v: undefined,                           // <- value
+      h: false,                               // <- handled rejection
+      n: false                                // <- notify
+    };
+    this[RECORD] = record;
+    try {
+      executor(ctx($resolve, record, 1), ctx($reject, record, 1));
+    } catch(err){
+      $reject.call(record, err);
+    }
+  };
+  require('./$.mix')(P.prototype, {
+    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
+    then: function then(onFulfilled, onRejected){
+      var S = anObject(anObject(this).constructor)[SPECIES];
+      var react = {
+        ok:   typeof onFulfilled == 'function' ? onFulfilled : true,
+        fail: typeof onRejected == 'function'  ? onRejected  : false
+      };
+      var promise = react.P = new (S != undefined ? S : P)(function(res, rej){
+        react.res = aFunction(res);
+        react.rej = aFunction(rej);
+      });
+      var record = this[RECORD];
+      record.c.push(react);
+      if(record.a)record.a.push(react);
+      if(record.s)notify(record, false);
+      return promise;
+    },
+    // 25.4.5.1 Promise.prototype.catch(onRejected)
+    'catch': function(onRejected){
+      return this.then(undefined, onRejected);
+    }
+  });
+}
+
+// export
+$def($def.G + $def.W + $def.F * !useNative, {Promise: P});
+require('./$.tag')(P, PROMISE);
+species(P);
+species(Wrapper = require('./$.core')[PROMISE]);
+
+// statics
+$def($def.S + $def.F * !useNative, PROMISE, {
+  // 25.4.4.5 Promise.reject(r)
+  reject: function reject(r){
+    return new this(function(res, rej){ rej(r); });
+  }
+});
+$def($def.S + $def.F * (!useNative || testResolve(true)), PROMISE, {
+  // 25.4.4.6 Promise.resolve(x)
+  resolve: function resolve(x){
+    return isPromise(x) && sameConstructor(x.constructor, this)
+      ? x : new this(function(res){ res(x); });
+  }
+});
+$def($def.S + $def.F * !(useNative && require('./$.iter-detect')(function(iter){
+  P.all(iter)['catch'](function(){});
+})), PROMISE, {
+  // 25.4.4.1 Promise.all(iterable)
+  all: function all(iterable){
+    var C      = getConstructor(this)
+      , values = [];
+    return new C(function(res, rej){
+      forOf(iterable, false, values.push, values);
+      var remaining = values.length
+        , results   = Array(remaining);
+      if(remaining)$.each.call(values, function(promise, index){
+        C.resolve(promise).then(function(value){
+          results[index] = value;
+          --remaining || res(results);
+        }, rej);
+      });
+      else res(results);
+    });
+  },
+  // 25.4.4.4 Promise.race(iterable)
+  race: function race(iterable){
+    var C = getConstructor(this);
+    return new C(function(res, rej){
+      forOf(iterable, false, function(promise){
+        C.resolve(promise).then(res, rej);
+      });
+    });
+  }
+});
+},{"./$":46,"./$.a-function":7,"./$.an-object":8,"./$.classof":12,"./$.core":18,"./$.ctx":19,"./$.def":20,"./$.for-of":28,"./$.global":30,"./$.is-object":38,"./$.iter-detect":43,"./$.library":48,"./$.microtask":50,"./$.mix":51,"./$.same":60,"./$.set-proto":61,"./$.species":64,"./$.strict-new":65,"./$.support-desc":71,"./$.tag":72,"./$.uid":79,"./$.wks":81}],137:[function(require,module,exports){
+// 26.1.1 Reflect.apply(target, thisArgument, argumentsList)
+var $def   = require('./$.def')
+  , _apply = Function.apply;
+
+$def($def.S, 'Reflect', {
+  apply: function apply(target, thisArgument, argumentsList){
+    return _apply.call(target, thisArgument, argumentsList);
+  }
+});
+},{"./$.def":20}],138:[function(require,module,exports){
+// 26.1.2 Reflect.construct(target, argumentsList [, newTarget])
+var $         = require('./$')
+  , $def      = require('./$.def')
+  , aFunction = require('./$.a-function')
+  , anObject  = require('./$.an-object')
+  , isObject  = require('./$.is-object')
+  , bind      = Function.bind || require('./$.core').Function.prototype.bind;
+
+$def($def.S, 'Reflect', {
+  construct: function construct(Target, args /*, newTarget*/){
+    aFunction(Target);
+    if(arguments.length < 3){
+      // w/o newTarget, optimization for 0-4 arguments
+      if(args != undefined)switch(anObject(args).length){
+        case 0: return new Target;
+        case 1: return new Target(args[0]);
+        case 2: return new Target(args[0], args[1]);
+        case 3: return new Target(args[0], args[1], args[2]);
+        case 4: return new Target(args[0], args[1], args[2], args[3]);
+      }
+      // w/o newTarget, lot of arguments case
+      var $args = [null];
+      $args.push.apply($args, args);
+      return new (bind.apply(Target, $args));
+    }
+    // with newTarget, not support built-in constructors
+    var proto    = aFunction(arguments[2]).prototype
+      , instance = $.create(isObject(proto) ? proto : Object.prototype)
+      , result   = Function.apply.call(Target, instance, args);
+    return isObject(result) ? result : instance;
+  }
+});
+},{"./$":46,"./$.a-function":7,"./$.an-object":8,"./$.core":18,"./$.def":20,"./$.is-object":38}],139:[function(require,module,exports){
+// 26.1.3 Reflect.defineProperty(target, propertyKey, attributes)
+var $        = require('./$')
+  , $def     = require('./$.def')
+  , anObject = require('./$.an-object');
+
+// MS Edge has broken Reflect.defineProperty - throwing instead of returning false
+$def($def.S + $def.F * require('./$.fails')(function(){
+  Reflect.defineProperty($.setDesc({}, 1, {value: 1}), 1, {value: 2});
+}), 'Reflect', {
+  defineProperty: function defineProperty(target, propertyKey, attributes){
+    anObject(target);
+    try {
+      $.setDesc(target, propertyKey, attributes);
+      return true;
+    } catch(e){
+      return false;
+    }
+  }
+});
+},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.fails":25}],140:[function(require,module,exports){
+// 26.1.4 Reflect.deleteProperty(target, propertyKey)
+var $def     = require('./$.def')
+  , getDesc  = require('./$').getDesc
+  , anObject = require('./$.an-object');
+
+$def($def.S, 'Reflect', {
+  deleteProperty: function deleteProperty(target, propertyKey){
+    var desc = getDesc(anObject(target), propertyKey);
+    return desc && !desc.configurable ? false : delete target[propertyKey];
+  }
+});
+},{"./$":46,"./$.an-object":8,"./$.def":20}],141:[function(require,module,exports){
+'use strict';
+// 26.1.5 Reflect.enumerate(target)
+var $def     = require('./$.def')
+  , anObject = require('./$.an-object');
+var Enumerate = function(iterated){
+  this._t = anObject(iterated); // target
+  this._i = 0;                  // next index
+  var keys = this._k = []       // keys
+    , key;
+  for(key in iterated)keys.push(key);
+};
+require('./$.iter-create')(Enumerate, 'Object', function(){
+  var that = this
+    , keys = that._k
+    , key;
+  do {
+    if(that._i >= keys.length)return {value: undefined, done: true};
+  } while(!((key = keys[that._i++]) in that._t));
+  return {value: key, done: false};
+});
+
+$def($def.S, 'Reflect', {
+  enumerate: function enumerate(target){
+    return new Enumerate(target);
+  }
+});
+},{"./$.an-object":8,"./$.def":20,"./$.iter-create":41}],142:[function(require,module,exports){
+// 26.1.7 Reflect.getOwnPropertyDescriptor(target, propertyKey)
+var $        = require('./$')
+  , $def     = require('./$.def')
+  , anObject = require('./$.an-object');
+
+$def($def.S, 'Reflect', {
+  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey){
+    return $.getDesc(anObject(target), propertyKey);
+  }
+});
+},{"./$":46,"./$.an-object":8,"./$.def":20}],143:[function(require,module,exports){
+// 26.1.8 Reflect.getPrototypeOf(target)
+var $def     = require('./$.def')
+  , getProto = require('./$').getProto
+  , anObject = require('./$.an-object');
+
+$def($def.S, 'Reflect', {
+  getPrototypeOf: function getPrototypeOf(target){
+    return getProto(anObject(target));
+  }
+});
+},{"./$":46,"./$.an-object":8,"./$.def":20}],144:[function(require,module,exports){
+// 26.1.6 Reflect.get(target, propertyKey [, receiver])
+var $        = require('./$')
+  , has      = require('./$.has')
+  , $def     = require('./$.def')
+  , isObject = require('./$.is-object')
+  , anObject = require('./$.an-object');
+
+function get(target, propertyKey/*, receiver*/){
+  var receiver = arguments.length < 3 ? target : arguments[2]
+    , desc, proto;
+  if(anObject(target) === receiver)return target[propertyKey];
+  if(desc = $.getDesc(target, propertyKey))return has(desc, 'value')
+    ? desc.value
+    : desc.get !== undefined
+      ? desc.get.call(receiver)
+      : undefined;
+  if(isObject(proto = $.getProto(target)))return get(proto, propertyKey, receiver);
+}
+
+$def($def.S, 'Reflect', {get: get});
+},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.has":31,"./$.is-object":38}],145:[function(require,module,exports){
+// 26.1.9 Reflect.has(target, propertyKey)
+var $def = require('./$.def');
+
+$def($def.S, 'Reflect', {
+  has: function has(target, propertyKey){
+    return propertyKey in target;
+  }
+});
+},{"./$.def":20}],146:[function(require,module,exports){
+// 26.1.10 Reflect.isExtensible(target)
+var $def          = require('./$.def')
+  , anObject      = require('./$.an-object')
+  , $isExtensible = Object.isExtensible;
+
+$def($def.S, 'Reflect', {
+  isExtensible: function isExtensible(target){
+    anObject(target);
+    return $isExtensible ? $isExtensible(target) : true;
+  }
+});
+},{"./$.an-object":8,"./$.def":20}],147:[function(require,module,exports){
+// 26.1.11 Reflect.ownKeys(target)
+var $def = require('./$.def');
+
+$def($def.S, 'Reflect', {ownKeys: require('./$.own-keys')});
+},{"./$.def":20,"./$.own-keys":54}],148:[function(require,module,exports){
+// 26.1.12 Reflect.preventExtensions(target)
+var $def               = require('./$.def')
+  , anObject           = require('./$.an-object')
+  , $preventExtensions = Object.preventExtensions;
+
+$def($def.S, 'Reflect', {
+  preventExtensions: function preventExtensions(target){
+    anObject(target);
+    try {
+      if($preventExtensions)$preventExtensions(target);
+      return true;
+    } catch(e){
+      return false;
+    }
+  }
+});
+},{"./$.an-object":8,"./$.def":20}],149:[function(require,module,exports){
+// 26.1.14 Reflect.setPrototypeOf(target, proto)
+var $def     = require('./$.def')
+  , setProto = require('./$.set-proto');
+
+if(setProto)$def($def.S, 'Reflect', {
+  setPrototypeOf: function setPrototypeOf(target, proto){
+    setProto.check(target, proto);
+    try {
+      setProto.set(target, proto);
+      return true;
+    } catch(e){
+      return false;
+    }
+  }
+});
+},{"./$.def":20,"./$.set-proto":61}],150:[function(require,module,exports){
+// 26.1.13 Reflect.set(target, propertyKey, V [, receiver])
+var $          = require('./$')
+  , has        = require('./$.has')
+  , $def       = require('./$.def')
+  , createDesc = require('./$.property-desc')
+  , anObject   = require('./$.an-object')
+  , isObject   = require('./$.is-object');
+
+function set(target, propertyKey, V/*, receiver*/){
+  var receiver = arguments.length < 4 ? target : arguments[3]
+    , ownDesc  = $.getDesc(anObject(target), propertyKey)
+    , existingDescriptor, proto;
+  if(!ownDesc){
+    if(isObject(proto = $.getProto(target))){
+      return set(proto, propertyKey, V, receiver);
+    }
+    ownDesc = createDesc(0);
+  }
+  if(has(ownDesc, 'value')){
+    if(ownDesc.writable === false || !isObject(receiver))return false;
+    existingDescriptor = $.getDesc(receiver, propertyKey) || createDesc(0);
+    existingDescriptor.value = V;
+    $.setDesc(receiver, propertyKey, existingDescriptor);
+    return true;
+  }
+  return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true);
+}
+
+$def($def.S, 'Reflect', {set: set});
+},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.has":31,"./$.is-object":38,"./$.property-desc":57}],151:[function(require,module,exports){
+var $       = require('./$')
+  , global  = require('./$.global')
+  , cof     = require('./$.cof')
+  , $flags  = require('./$.flags')
+  , $RegExp = global.RegExp
+  , Base    = $RegExp
+  , proto   = $RegExp.prototype
+  , re      = /a/g
+  // "new" creates a new object
+  , CORRECT_NEW = new $RegExp(re) !== re
+  // RegExp allows a regex with flags as the pattern
+  , ALLOWS_RE_WITH_FLAGS = function(){
+    try {
+      return $RegExp(re, 'i') == '/a/i';
+    } catch(e){ /* empty */ }
+  }();
+
+if(require('./$.support-desc')){
+  if(!CORRECT_NEW || !ALLOWS_RE_WITH_FLAGS){
+    $RegExp = function RegExp(pattern, flags){
+      var patternIsRegExp  = cof(pattern) == 'RegExp'
+        , flagsIsUndefined = flags === undefined;
+      if(!(this instanceof $RegExp) && patternIsRegExp && flagsIsUndefined)return pattern;
+      return CORRECT_NEW
+        ? new Base(patternIsRegExp && !flagsIsUndefined ? pattern.source : pattern, flags)
+        : new Base(patternIsRegExp ? pattern.source : pattern
+          , patternIsRegExp && flagsIsUndefined ? $flags.call(pattern) : flags);
+    };
+    $.each.call($.getNames(Base), function(key){
+      key in $RegExp || $.setDesc($RegExp, key, {
+        configurable: true,
+        get: function(){ return Base[key]; },
+        set: function(it){ Base[key] = it; }
+      });
+    });
+    proto.constructor = $RegExp;
+    $RegExp.prototype = proto;
+    require('./$.redef')(global, 'RegExp', $RegExp);
+  }
+}
+
+require('./$.species')($RegExp);
+},{"./$":46,"./$.cof":13,"./$.flags":27,"./$.global":30,"./$.redef":58,"./$.species":64,"./$.support-desc":71}],152:[function(require,module,exports){
+// 21.2.5.3 get RegExp.prototype.flags()
+var $ = require('./$');
+if(require('./$.support-desc') && /./g.flags != 'g')$.setDesc(RegExp.prototype, 'flags', {
+  configurable: true,
+  get: require('./$.flags')
+});
+},{"./$":46,"./$.flags":27,"./$.support-desc":71}],153:[function(require,module,exports){
+// @@match logic
+require('./$.fix-re-wks')('match', 1, function(defined, MATCH){
+  // 21.1.3.11 String.prototype.match(regexp)
+  return function match(regexp){
+    'use strict';
+    var O  = defined(this)
+      , fn = regexp == undefined ? undefined : regexp[MATCH];
+    return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
+  };
+});
+},{"./$.fix-re-wks":26}],154:[function(require,module,exports){
+// @@replace logic
+require('./$.fix-re-wks')('replace', 2, function(defined, REPLACE, $replace){
+  // 21.1.3.14 String.prototype.replace(searchValue, replaceValue)
+  return function replace(searchValue, replaceValue){
+    'use strict';
+    var O  = defined(this)
+      , fn = searchValue == undefined ? undefined : searchValue[REPLACE];
+    return fn !== undefined
+      ? fn.call(searchValue, O, replaceValue)
+      : $replace.call(String(O), searchValue, replaceValue);
+  };
+});
+},{"./$.fix-re-wks":26}],155:[function(require,module,exports){
+// @@search logic
+require('./$.fix-re-wks')('search', 1, function(defined, SEARCH){
+  // 21.1.3.15 String.prototype.search(regexp)
+  return function search(regexp){
+    'use strict';
+    var O  = defined(this)
+      , fn = regexp == undefined ? undefined : regexp[SEARCH];
+    return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
+  };
+});
+},{"./$.fix-re-wks":26}],156:[function(require,module,exports){
+// @@split logic
+require('./$.fix-re-wks')('split', 2, function(defined, SPLIT, $split){
+  // 21.1.3.17 String.prototype.split(separator, limit)
+  return function split(separator, limit){
+    'use strict';
+    var O  = defined(this)
+      , fn = separator == undefined ? undefined : separator[SPLIT];
+    return fn !== undefined
+      ? fn.call(separator, O, limit)
+      : $split.call(String(O), separator, limit);
+  };
+});
+},{"./$.fix-re-wks":26}],157:[function(require,module,exports){
+'use strict';
+var strong = require('./$.collection-strong');
+
+// 23.2 Set Objects
+require('./$.collection')('Set', function(get){
+  return function Set(){ return get(this, arguments[0]); };
+}, {
+  // 23.2.3.1 Set.prototype.add(value)
+  add: function add(value){
+    return strong.def(this, value = value === 0 ? 0 : value, value);
+  }
+}, strong);
+},{"./$.collection":17,"./$.collection-strong":14}],158:[function(require,module,exports){
+'use strict';
+var $def = require('./$.def')
+  , $at  = require('./$.string-at')(false);
+$def($def.P, 'String', {
+  // 21.1.3.3 String.prototype.codePointAt(pos)
+  codePointAt: function codePointAt(pos){
+    return $at(this, pos);
+  }
+});
+},{"./$.def":20,"./$.string-at":66}],159:[function(require,module,exports){
+'use strict';
+var $def     = require('./$.def')
+  , toLength = require('./$.to-length')
+  , context  = require('./$.string-context');
+
+// should throw error on regex
+$def($def.P + $def.F * !require('./$.fails')(function(){ 'q'.endsWith(/./); }), 'String', {
+  // 21.1.3.6 String.prototype.endsWith(searchString [, endPosition])
+  endsWith: function endsWith(searchString /*, endPosition = @length */){
+    var that = context(this, searchString, 'endsWith')
+      , endPosition = arguments[1]
+      , len    = toLength(that.length)
+      , end    = endPosition === undefined ? len : Math.min(toLength(endPosition), len)
+      , search = String(searchString);
+    return that.slice(end - search.length, end) === search;
+  }
+});
+},{"./$.def":20,"./$.fails":25,"./$.string-context":67,"./$.to-length":77}],160:[function(require,module,exports){
+var $def    = require('./$.def')
+  , toIndex = require('./$.to-index')
+  , fromCharCode = String.fromCharCode
+  , $fromCodePoint = String.fromCodePoint;
+
+// length should be 1, old FF problem
+$def($def.S + $def.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
+  // 21.1.2.2 String.fromCodePoint(...codePoints)
+  fromCodePoint: function fromCodePoint(x){ // eslint-disable-line no-unused-vars
+    var res = []
+      , len = arguments.length
+      , i   = 0
+      , code;
+    while(len > i){
+      code = +arguments[i++];
+      if(toIndex(code, 0x10ffff) !== code)throw RangeError(code + ' is not a valid code point');
+      res.push(code < 0x10000
+        ? fromCharCode(code)
+        : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)
+      );
+    } return res.join('');
+  }
+});
+},{"./$.def":20,"./$.to-index":74}],161:[function(require,module,exports){
+'use strict';
+var $def    = require('./$.def')
+  , context = require('./$.string-context');
+
+$def($def.P, 'String', {
+  // 21.1.3.7 String.prototype.includes(searchString, position = 0)
+  includes: function includes(searchString /*, position = 0 */){
+    return !!~context(this, searchString, 'includes').indexOf(searchString, arguments[1]);
+  }
+});
+},{"./$.def":20,"./$.string-context":67}],162:[function(require,module,exports){
+'use strict';
+var $at  = require('./$.string-at')(true);
+
+// 21.1.3.27 String.prototype[@@iterator]()
+require('./$.iter-define')(String, 'String', function(iterated){
+  this._t = String(iterated); // target
+  this._i = 0;                // next index
+// 21.1.5.2.1 %StringIteratorPrototype%.next()
+}, function(){
+  var O     = this._t
+    , index = this._i
+    , point;
+  if(index >= O.length)return {value: undefined, done: true};
+  point = $at(O, index);
+  this._i += point.length;
+  return {value: point, done: false};
+});
+},{"./$.iter-define":42,"./$.string-at":66}],163:[function(require,module,exports){
+var $def      = require('./$.def')
+  , toIObject = require('./$.to-iobject')
+  , toLength  = require('./$.to-length');
+
+$def($def.S, 'String', {
+  // 21.1.2.4 String.raw(callSite, ...substitutions)
+  raw: function raw(callSite){
+    var tpl = toIObject(callSite.raw)
+      , len = toLength(tpl.length)
+      , sln = arguments.length
+      , res = []
+      , i   = 0;
+    while(len > i){
+      res.push(String(tpl[i++]));
+      if(i < sln)res.push(String(arguments[i]));
+    } return res.join('');
+  }
+});
+},{"./$.def":20,"./$.to-iobject":76,"./$.to-length":77}],164:[function(require,module,exports){
+var $def = require('./$.def');
+
+$def($def.P, 'String', {
+  // 21.1.3.13 String.prototype.repeat(count)
+  repeat: require('./$.string-repeat')
+});
+},{"./$.def":20,"./$.string-repeat":69}],165:[function(require,module,exports){
+'use strict';
+var $def     = require('./$.def')
+  , toLength = require('./$.to-length')
+  , context  = require('./$.string-context');
+
+// should throw error on regex
+$def($def.P + $def.F * !require('./$.fails')(function(){ 'q'.startsWith(/./); }), 'String', {
+  // 21.1.3.18 String.prototype.startsWith(searchString [, position ])
+  startsWith: function startsWith(searchString /*, position = 0 */){
+    var that   = context(this, searchString, 'startsWith')
+      , index  = toLength(Math.min(arguments[1], that.length))
+      , search = String(searchString);
+    return that.slice(index, index + search.length) === search;
+  }
+});
+},{"./$.def":20,"./$.fails":25,"./$.string-context":67,"./$.to-length":77}],166:[function(require,module,exports){
+'use strict';
+// 21.1.3.25 String.prototype.trim()
+require('./$.string-trim')('trim', function($trim){
+  return function trim(){
+    return $trim(this, 3);
+  };
+});
+},{"./$.string-trim":70}],167:[function(require,module,exports){
+'use strict';
+// ECMAScript 6 symbols shim
+var $              = require('./$')
+  , global         = require('./$.global')
+  , has            = require('./$.has')
+  , SUPPORT_DESC   = require('./$.support-desc')
+  , $def           = require('./$.def')
+  , $redef         = require('./$.redef')
+  , shared         = require('./$.shared')
+  , setTag         = require('./$.tag')
+  , uid            = require('./$.uid')
+  , wks            = require('./$.wks')
+  , keyOf          = require('./$.keyof')
+  , $names         = require('./$.get-names')
+  , enumKeys       = require('./$.enum-keys')
+  , anObject       = require('./$.an-object')
+  , toIObject      = require('./$.to-iobject')
+  , createDesc     = require('./$.property-desc')
+  , getDesc        = $.getDesc
+  , setDesc        = $.setDesc
+  , $create        = $.create
+  , getNames       = $names.get
+  , $Symbol        = global.Symbol
+  , setter         = false
+  , HIDDEN         = wks('_hidden')
+  , isEnum         = $.isEnum
+  , SymbolRegistry = shared('symbol-registry')
+  , AllSymbols     = shared('symbols')
+  , useNative      = typeof $Symbol == 'function'
+  , ObjectProto    = Object.prototype;
+
+var setSymbolDesc = SUPPORT_DESC ? function(){ // fallback for old Android
+  try {
+    return $create(setDesc({}, HIDDEN, {
+      get: function(){
+        return setDesc(this, HIDDEN, {value: false})[HIDDEN];
+      }
+    }))[HIDDEN] || setDesc;
+  } catch(e){
+    return function(it, key, D){
+      var protoDesc = getDesc(ObjectProto, key);
+      if(protoDesc)delete ObjectProto[key];
+      setDesc(it, key, D);
+      if(protoDesc && it !== ObjectProto)setDesc(ObjectProto, key, protoDesc);
+    };
+  }
+}() : setDesc;
+
+var wrap = function(tag){
+  var sym = AllSymbols[tag] = $create($Symbol.prototype);
+  sym._k = tag;
+  SUPPORT_DESC && setter && setSymbolDesc(ObjectProto, tag, {
+    configurable: true,
+    set: function(value){
+      if(has(this, HIDDEN) && has(this[HIDDEN], tag))this[HIDDEN][tag] = false;
+      setSymbolDesc(this, tag, createDesc(1, value));
+    }
+  });
+  return sym;
+};
+
+function defineProperty(it, key, D){
+  if(D && has(AllSymbols, key)){
+    if(!D.enumerable){
+      if(!has(it, HIDDEN))setDesc(it, HIDDEN, createDesc(1, {}));
+      it[HIDDEN][key] = true;
+    } else {
+      if(has(it, HIDDEN) && it[HIDDEN][key])it[HIDDEN][key] = false;
+      D = $create(D, {enumerable: createDesc(0, false)});
+    } return setSymbolDesc(it, key, D);
+  } return setDesc(it, key, D);
+}
+function defineProperties(it, P){
+  anObject(it);
+  var keys = enumKeys(P = toIObject(P))
+    , i    = 0
+    , l = keys.length
+    , key;
+  while(l > i)defineProperty(it, key = keys[i++], P[key]);
+  return it;
+}
+function create(it, P){
+  return P === undefined ? $create(it) : defineProperties($create(it), P);
+}
+function propertyIsEnumerable(key){
+  var E = isEnum.call(this, key);
+  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key]
+    ? E : true;
+}
+function getOwnPropertyDescriptor(it, key){
+  var D = getDesc(it = toIObject(it), key);
+  if(D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key]))D.enumerable = true;
+  return D;
+}
+function getOwnPropertyNames(it){
+  var names  = getNames(toIObject(it))
+    , result = []
+    , i      = 0
+    , key;
+  while(names.length > i)if(!has(AllSymbols, key = names[i++]) && key != HIDDEN)result.push(key);
+  return result;
+}
+function getOwnPropertySymbols(it){
+  var names  = getNames(toIObject(it))
+    , result = []
+    , i      = 0
+    , key;
+  while(names.length > i)if(has(AllSymbols, key = names[i++]))result.push(AllSymbols[key]);
+  return result;
+}
+
+// 19.4.1.1 Symbol([description])
+if(!useNative){
+  $Symbol = function Symbol(){
+    if(this instanceof $Symbol)throw TypeError('Symbol is not a constructor');
+    return wrap(uid(arguments[0]));
+  };
+  $redef($Symbol.prototype, 'toString', function(){
+    return this._k;
+  });
+
+  $.create     = create;
+  $.isEnum     = propertyIsEnumerable;
+  $.getDesc    = getOwnPropertyDescriptor;
+  $.setDesc    = defineProperty;
+  $.setDescs   = defineProperties;
+  $.getNames   = $names.get = getOwnPropertyNames;
+  $.getSymbols = getOwnPropertySymbols;
+
+  if(SUPPORT_DESC && !require('./$.library')){
+    $redef(ObjectProto, 'propertyIsEnumerable', propertyIsEnumerable, true);
+  }
+}
+
+var symbolStatics = {
+  // 19.4.2.1 Symbol.for(key)
+  'for': function(key){
+    return has(SymbolRegistry, key += '')
+      ? SymbolRegistry[key]
+      : SymbolRegistry[key] = $Symbol(key);
+  },
+  // 19.4.2.5 Symbol.keyFor(sym)
+  keyFor: function keyFor(key){
+    return keyOf(SymbolRegistry, key);
+  },
+  useSetter: function(){ setter = true; },
+  useSimple: function(){ setter = false; }
+};
+// 19.4.2.2 Symbol.hasInstance
+// 19.4.2.3 Symbol.isConcatSpreadable
+// 19.4.2.4 Symbol.iterator
+// 19.4.2.6 Symbol.match
+// 19.4.2.8 Symbol.replace
+// 19.4.2.9 Symbol.search
+// 19.4.2.10 Symbol.species
+// 19.4.2.11 Symbol.split
+// 19.4.2.12 Symbol.toPrimitive
+// 19.4.2.13 Symbol.toStringTag
+// 19.4.2.14 Symbol.unscopables
+$.each.call((
+    'hasInstance,isConcatSpreadable,iterator,match,replace,search,' +
+    'species,split,toPrimitive,toStringTag,unscopables'
+  ).split(','), function(it){
+    var sym = wks(it);
+    symbolStatics[it] = useNative ? sym : wrap(sym);
+  }
+);
+
+setter = true;
+
+$def($def.G + $def.W, {Symbol: $Symbol});
+
+$def($def.S, 'Symbol', symbolStatics);
+
+$def($def.S + $def.F * !useNative, 'Object', {
+  // 19.1.2.2 Object.create(O [, Properties])
+  create: create,
+  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
+  defineProperty: defineProperty,
+  // 19.1.2.3 Object.defineProperties(O, Properties)
+  defineProperties: defineProperties,
+  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
+  getOwnPropertyDescriptor: getOwnPropertyDescriptor,
+  // 19.1.2.7 Object.getOwnPropertyNames(O)
+  getOwnPropertyNames: getOwnPropertyNames,
+  // 19.1.2.8 Object.getOwnPropertySymbols(O)
+  getOwnPropertySymbols: getOwnPropertySymbols
+});
+
+// 19.4.3.5 Symbol.prototype[@@toStringTag]
+setTag($Symbol, 'Symbol');
+// 20.2.1.9 Math[@@toStringTag]
+setTag(Math, 'Math', true);
+// 24.3.3 JSON[@@toStringTag]
+setTag(global.JSON, 'JSON', true);
+},{"./$":46,"./$.an-object":8,"./$.def":20,"./$.enum-keys":23,"./$.get-names":29,"./$.global":30,"./$.has":31,"./$.keyof":47,"./$.library":48,"./$.property-desc":57,"./$.redef":58,"./$.shared":62,"./$.support-desc":71,"./$.tag":72,"./$.to-iobject":76,"./$.uid":79,"./$.wks":81}],168:[function(require,module,exports){
+'use strict';
+var $            = require('./$')
+  , weak         = require('./$.collection-weak')
+  , isObject     = require('./$.is-object')
+  , has          = require('./$.has')
+  , frozenStore  = weak.frozenStore
+  , WEAK         = weak.WEAK
+  , isExtensible = Object.isExtensible || isObject
+  , tmp          = {};
+
+// 23.3 WeakMap Objects
+var $WeakMap = require('./$.collection')('WeakMap', function(get){
+  return function WeakMap(){ return get(this, arguments[0]); };
+}, {
+  // 23.3.3.3 WeakMap.prototype.get(key)
+  get: function get(key){
+    if(isObject(key)){
+      if(!isExtensible(key))return frozenStore(this).get(key);
+      if(has(key, WEAK))return key[WEAK][this._i];
+    }
+  },
+  // 23.3.3.5 WeakMap.prototype.set(key, value)
+  set: function set(key, value){
+    return weak.def(this, key, value);
+  }
+}, weak, true, true);
+
+// IE11 WeakMap frozen keys fix
+if(new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7){
+  $.each.call(['delete', 'has', 'get', 'set'], function(key){
+    var proto  = $WeakMap.prototype
+      , method = proto[key];
+    require('./$.redef')(proto, key, function(a, b){
+      // store frozen objects on leaky map
+      if(isObject(a) && !isExtensible(a)){
+        var result = frozenStore(this)[key](a, b);
+        return key == 'set' ? this : result;
+      // store all the rest on native weakmap
+      } return method.call(this, a, b);
+    });
+  });
+}
+},{"./$":46,"./$.collection":17,"./$.collection-weak":16,"./$.has":31,"./$.is-object":38,"./$.redef":58}],169:[function(require,module,exports){
+'use strict';
+var weak = require('./$.collection-weak');
+
+// 23.4 WeakSet Objects
+require('./$.collection')('WeakSet', function(get){
+  return function WeakSet(){ return get(this, arguments[0]); };
+}, {
+  // 23.4.3.1 WeakSet.prototype.add(value)
+  add: function add(value){
+    return weak.def(this, value, true);
+  }
+}, weak, false, true);
+},{"./$.collection":17,"./$.collection-weak":16}],170:[function(require,module,exports){
+'use strict';
+var $def      = require('./$.def')
+  , $includes = require('./$.array-includes')(true);
+$def($def.P, 'Array', {
+  // https://github.com/domenic/Array.prototype.includes
+  includes: function includes(el /*, fromIndex = 0 */){
+    return $includes(this, el, arguments[1]);
+  }
+});
+require('./$.unscope')('includes');
+},{"./$.array-includes":9,"./$.def":20,"./$.unscope":80}],171:[function(require,module,exports){
+// https://github.com/DavidBruant/Map-Set.prototype.toJSON
+var $def  = require('./$.def');
+
+$def($def.P, 'Map', {toJSON: require('./$.collection-to-json')('Map')});
+},{"./$.collection-to-json":15,"./$.def":20}],172:[function(require,module,exports){
+// http://goo.gl/XkBrjD
+var $def     = require('./$.def')
+  , $entries = require('./$.object-to-array')(true);
+
+$def($def.S, 'Object', {
+  entries: function entries(it){
+    return $entries(it);
+  }
+});
+},{"./$.def":20,"./$.object-to-array":53}],173:[function(require,module,exports){
+// https://gist.github.com/WebReflection/9353781
+var $          = require('./$')
+  , $def       = require('./$.def')
+  , ownKeys    = require('./$.own-keys')
+  , toIObject  = require('./$.to-iobject')
+  , createDesc = require('./$.property-desc');
+
+$def($def.S, 'Object', {
+  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object){
+    var O       = toIObject(object)
+      , setDesc = $.setDesc
+      , getDesc = $.getDesc
+      , keys    = ownKeys(O)
+      , result  = {}
+      , i       = 0
+      , key, D;
+    while(keys.length > i){
+      D = getDesc(O, key = keys[i++]);
+      if(key in result)setDesc(result, key, createDesc(0, D));
+      else result[key] = D;
+    } return result;
+  }
+});
+},{"./$":46,"./$.def":20,"./$.own-keys":54,"./$.property-desc":57,"./$.to-iobject":76}],174:[function(require,module,exports){
+// http://goo.gl/XkBrjD
+var $def    = require('./$.def')
+  , $values = require('./$.object-to-array')(false);
+
+$def($def.S, 'Object', {
+  values: function values(it){
+    return $values(it);
+  }
+});
+},{"./$.def":20,"./$.object-to-array":53}],175:[function(require,module,exports){
+// https://github.com/benjamingr/RexExp.escape
+var $def = require('./$.def')
+  , $re  = require('./$.replacer')(/[\\^$*+?.()|[\]{}]/g, '\\$&');
+$def($def.S, 'RegExp', {escape: function escape(it){ return $re(it); }});
+
+},{"./$.def":20,"./$.replacer":59}],176:[function(require,module,exports){
+// https://github.com/DavidBruant/Map-Set.prototype.toJSON
+var $def  = require('./$.def');
+
+$def($def.P, 'Set', {toJSON: require('./$.collection-to-json')('Set')});
+},{"./$.collection-to-json":15,"./$.def":20}],177:[function(require,module,exports){
+// https://github.com/mathiasbynens/String.prototype.at
+'use strict';
+var $def = require('./$.def')
+  , $at  = require('./$.string-at')(true);
+$def($def.P, 'String', {
+  at: function at(pos){
+    return $at(this, pos);
+  }
+});
+},{"./$.def":20,"./$.string-at":66}],178:[function(require,module,exports){
+'use strict';
+var $def = require('./$.def')
+  , $pad = require('./$.string-pad');
+$def($def.P, 'String', {
+  padLeft: function padLeft(maxLength /*, fillString = ' ' */){
+    return $pad(this, maxLength, arguments[1], true);
+  }
+});
+},{"./$.def":20,"./$.string-pad":68}],179:[function(require,module,exports){
+'use strict';
+var $def = require('./$.def')
+  , $pad = require('./$.string-pad');
+$def($def.P, 'String', {
+  padRight: function padRight(maxLength /*, fillString = ' ' */){
+    return $pad(this, maxLength, arguments[1], false);
+  }
+});
+},{"./$.def":20,"./$.string-pad":68}],180:[function(require,module,exports){
+'use strict';
+// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
+require('./$.string-trim')('trimLeft', function($trim){
+  return function trimLeft(){
+    return $trim(this, 1);
+  };
+});
+},{"./$.string-trim":70}],181:[function(require,module,exports){
+'use strict';
+// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
+require('./$.string-trim')('trimRight', function($trim){
+  return function trimRight(){
+    return $trim(this, 2);
+  };
+});
+},{"./$.string-trim":70}],182:[function(require,module,exports){
+// JavaScript 1.6 / Strawman array statics shim
+var $       = require('./$')
+  , $def    = require('./$.def')
+  , $Array  = require('./$.core').Array || Array
+  , statics = {};
+var setStatics = function(keys, length){
+  $.each.call(keys.split(','), function(key){
+    if(length == undefined && key in $Array)statics[key] = $Array[key];
+    else if(key in [])statics[key] = require('./$.ctx')(Function.call, [][key], length);
+  });
+};
+setStatics('pop,reverse,shift,keys,values,entries', 1);
+setStatics('indexOf,every,some,forEach,map,filter,find,findIndex,includes', 3);
+setStatics('join,slice,concat,push,splice,unshift,sort,lastIndexOf,' +
+           'reduce,reduceRight,copyWithin,fill');
+$def($def.S, 'Array', statics);
+},{"./$":46,"./$.core":18,"./$.ctx":19,"./$.def":20}],183:[function(require,module,exports){
+require('./es6.array.iterator');
+var global      = require('./$.global')
+  , hide        = require('./$.hide')
+  , Iterators   = require('./$.iterators')
+  , ITERATOR    = require('./$.wks')('iterator')
+  , NL          = global.NodeList
+  , HTC         = global.HTMLCollection
+  , NLProto     = NL && NL.prototype
+  , HTCProto    = HTC && HTC.prototype
+  , ArrayValues = Iterators.NodeList = Iterators.HTMLCollection = Iterators.Array;
+if(NL && !(ITERATOR in NLProto))hide(NLProto, ITERATOR, ArrayValues);
+if(HTC && !(ITERATOR in HTCProto))hide(HTCProto, ITERATOR, ArrayValues);
+},{"./$.global":30,"./$.hide":32,"./$.iterators":45,"./$.wks":81,"./es6.array.iterator":89}],184:[function(require,module,exports){
+var $def  = require('./$.def')
+  , $task = require('./$.task');
+$def($def.G + $def.B, {
+  setImmediate:   $task.set,
+  clearImmediate: $task.clear
+});
+},{"./$.def":20,"./$.task":73}],185:[function(require,module,exports){
+// ie9- setTimeout & setInterval additional parameters fix
+var global     = require('./$.global')
+  , $def       = require('./$.def')
+  , invoke     = require('./$.invoke')
+  , partial    = require('./$.partial')
+  , navigator  = global.navigator
+  , MSIE       = !!navigator && /MSIE .\./.test(navigator.userAgent); // <- dirty ie9- check
+var wrap = function(set){
+  return MSIE ? function(fn, time /*, ...args */){
+    return set(invoke(
+      partial,
+      [].slice.call(arguments, 2),
+      typeof fn == 'function' ? fn : Function(fn)
+    ), time);
+  } : set;
+};
+$def($def.G + $def.B + $def.F * MSIE, {
+  setTimeout:  wrap(global.setTimeout),
+  setInterval: wrap(global.setInterval)
+});
+},{"./$.def":20,"./$.global":30,"./$.invoke":34,"./$.partial":55}],186:[function(require,module,exports){
+require('./modules/es5');
+require('./modules/es6.symbol');
+require('./modules/es6.object.assign');
+require('./modules/es6.object.is');
+require('./modules/es6.object.set-prototype-of');
+require('./modules/es6.object.to-string');
+require('./modules/es6.object.freeze');
+require('./modules/es6.object.seal');
+require('./modules/es6.object.prevent-extensions');
+require('./modules/es6.object.is-frozen');
+require('./modules/es6.object.is-sealed');
+require('./modules/es6.object.is-extensible');
+require('./modules/es6.object.get-own-property-descriptor');
+require('./modules/es6.object.get-prototype-of');
+require('./modules/es6.object.keys');
+require('./modules/es6.object.get-own-property-names');
+require('./modules/es6.function.name');
+require('./modules/es6.function.has-instance');
+require('./modules/es6.number.constructor');
+require('./modules/es6.number.epsilon');
+require('./modules/es6.number.is-finite');
+require('./modules/es6.number.is-integer');
+require('./modules/es6.number.is-nan');
+require('./modules/es6.number.is-safe-integer');
+require('./modules/es6.number.max-safe-integer');
+require('./modules/es6.number.min-safe-integer');
+require('./modules/es6.number.parse-float');
+require('./modules/es6.number.parse-int');
+require('./modules/es6.math.acosh');
+require('./modules/es6.math.asinh');
+require('./modules/es6.math.atanh');
+require('./modules/es6.math.cbrt');
+require('./modules/es6.math.clz32');
+require('./modules/es6.math.cosh');
+require('./modules/es6.math.expm1');
+require('./modules/es6.math.fround');
+require('./modules/es6.math.hypot');
+require('./modules/es6.math.imul');
+require('./modules/es6.math.log10');
+require('./modules/es6.math.log1p');
+require('./modules/es6.math.log2');
+require('./modules/es6.math.sign');
+require('./modules/es6.math.sinh');
+require('./modules/es6.math.tanh');
+require('./modules/es6.math.trunc');
+require('./modules/es6.string.from-code-point');
+require('./modules/es6.string.raw');
+require('./modules/es6.string.trim');
+require('./modules/es6.string.iterator');
+require('./modules/es6.string.code-point-at');
+require('./modules/es6.string.ends-with');
+require('./modules/es6.string.includes');
+require('./modules/es6.string.repeat');
+require('./modules/es6.string.starts-with');
+require('./modules/es6.array.from');
+require('./modules/es6.array.of');
+require('./modules/es6.array.iterator');
+require('./modules/es6.array.species');
+require('./modules/es6.array.copy-within');
+require('./modules/es6.array.fill');
+require('./modules/es6.array.find');
+require('./modules/es6.array.find-index');
+require('./modules/es6.regexp.constructor');
+require('./modules/es6.regexp.flags');
+require('./modules/es6.regexp.match');
+require('./modules/es6.regexp.replace');
+require('./modules/es6.regexp.search');
+require('./modules/es6.regexp.split');
+require('./modules/es6.promise');
+require('./modules/es6.map');
+require('./modules/es6.set');
+require('./modules/es6.weak-map');
+require('./modules/es6.weak-set');
+require('./modules/es6.reflect.apply');
+require('./modules/es6.reflect.construct');
+require('./modules/es6.reflect.define-property');
+require('./modules/es6.reflect.delete-property');
+require('./modules/es6.reflect.enumerate');
+require('./modules/es6.reflect.get');
+require('./modules/es6.reflect.get-own-property-descriptor');
+require('./modules/es6.reflect.get-prototype-of');
+require('./modules/es6.reflect.has');
+require('./modules/es6.reflect.is-extensible');
+require('./modules/es6.reflect.own-keys');
+require('./modules/es6.reflect.prevent-extensions');
+require('./modules/es6.reflect.set');
+require('./modules/es6.reflect.set-prototype-of');
+require('./modules/es7.array.includes');
+require('./modules/es7.string.at');
+require('./modules/es7.string.pad-left');
+require('./modules/es7.string.pad-right');
+require('./modules/es7.string.trim-left');
+require('./modules/es7.string.trim-right');
+require('./modules/es7.regexp.escape');
+require('./modules/es7.object.get-own-property-descriptors');
+require('./modules/es7.object.values');
+require('./modules/es7.object.entries');
+require('./modules/es7.map.to-json');
+require('./modules/es7.set.to-json');
+require('./modules/js.array.statics');
+require('./modules/web.timers');
+require('./modules/web.immediate');
+require('./modules/web.dom.iterable');
+module.exports = require('./modules/$.core');
+},{"./modules/$.core":18,"./modules/es5":83,"./modules/es6.array.copy-within":84,"./modules/es6.array.fill":85,"./modules/es6.array.find":87,"./modules/es6.array.find-index":86,"./modules/es6.array.from":88,"./modules/es6.array.iterator":89,"./modules/es6.array.of":90,"./modules/es6.array.species":91,"./modules/es6.function.has-instance":92,"./modules/es6.function.name":93,"./modules/es6.map":94,"./modules/es6.math.acosh":95,"./modules/es6.math.asinh":96,"./modules/es6.math.atanh":97,"./modules/es6.math.cbrt":98,"./modules/es6.math.clz32":99,"./modules/es6.math.cosh":100,"./modules/es6.math.expm1":101,"./modules/es6.math.fround":102,"./modules/es6.math.hypot":103,"./modules/es6.math.imul":104,"./modules/es6.math.log10":105,"./modules/es6.math.log1p":106,"./modules/es6.math.log2":107,"./modules/es6.math.sign":108,"./modules/es6.math.sinh":109,"./modules/es6.math.tanh":110,"./modules/es6.math.trunc":111,"./modules/es6.number.constructor":112,"./modules/es6.number.epsilon":113,"./modules/es6.number.is-finite":114,"./modules/es6.number.is-integer":115,"./modules/es6.number.is-nan":116,"./modules/es6.number.is-safe-integer":117,"./modules/es6.number.max-safe-integer":118,"./modules/es6.number.min-safe-integer":119,"./modules/es6.number.parse-float":120,"./modules/es6.number.parse-int":121,"./modules/es6.object.assign":122,"./modules/es6.object.freeze":123,"./modules/es6.object.get-own-property-descriptor":124,"./modules/es6.object.get-own-property-names":125,"./modules/es6.object.get-prototype-of":126,"./modules/es6.object.is":130,"./modules/es6.object.is-extensible":127,"./modules/es6.object.is-frozen":128,"./modules/es6.object.is-sealed":129,"./modules/es6.object.keys":131,"./modules/es6.object.prevent-extensions":132,"./modules/es6.object.seal":133,"./modules/es6.object.set-prototype-of":134,"./modules/es6.object.to-string":135,"./modules/es6.promise":136,"./modules/es6.reflect.apply":137,"./modules/es6.reflect.construct":138,"./modules/es6.reflect.define-property":139,"./modules/es6.reflect.delete-property":140,"./modules/es6.reflect.enumerate":141,"./modules/es6.reflect.get":144,"./modules/es6.reflect.get-own-property-descriptor":142,"./modules/es6.reflect.get-prototype-of":143,"./modules/es6.reflect.has":145,"./modules/es6.reflect.is-extensible":146,"./modules/es6.reflect.own-keys":147,"./modules/es6.reflect.prevent-extensions":148,"./modules/es6.reflect.set":150,"./modules/es6.reflect.set-prototype-of":149,"./modules/es6.regexp.constructor":151,"./modules/es6.regexp.flags":152,"./modules/es6.regexp.match":153,"./modules/es6.regexp.replace":154,"./modules/es6.regexp.search":155,"./modules/es6.regexp.split":156,"./modules/es6.set":157,"./modules/es6.string.code-point-at":158,"./modules/es6.string.ends-with":159,"./modules/es6.string.from-code-point":160,"./modules/es6.string.includes":161,"./modules/es6.string.iterator":162,"./modules/es6.string.raw":163,"./modules/es6.string.repeat":164,"./modules/es6.string.starts-with":165,"./modules/es6.string.trim":166,"./modules/es6.symbol":167,"./modules/es6.weak-map":168,"./modules/es6.weak-set":169,"./modules/es7.array.includes":170,"./modules/es7.map.to-json":171,"./modules/es7.object.entries":172,"./modules/es7.object.get-own-property-descriptors":173,"./modules/es7.object.values":174,"./modules/es7.regexp.escape":175,"./modules/es7.set.to-json":176,"./modules/es7.string.at":177,"./modules/es7.string.pad-left":178,"./modules/es7.string.pad-right":179,"./modules/es7.string.trim-left":180,"./modules/es7.string.trim-right":181,"./modules/js.array.statics":182,"./modules/web.dom.iterable":183,"./modules/web.immediate":184,"./modules/web.timers":185}],187:[function(require,module,exports){
+(function (process,global){
+/**
+ * Copyright (c) 2014, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
+ * additional grant of patent rights can be found in the PATENTS file in
+ * the same directory.
+ */
+
+!(function(global) {
+  "use strict";
+
+  var hasOwn = Object.prototype.hasOwnProperty;
+  var undefined; // More compressible than void 0.
+  var iteratorSymbol =
+    typeof Symbol === "function" && Symbol.iterator || "@@iterator";
+
+  var inModule = typeof module === "object";
+  var runtime = global.regeneratorRuntime;
+  if (runtime) {
+    if (inModule) {
+      // If regeneratorRuntime is defined globally and we're in a module,
+      // make the exports object identical to regeneratorRuntime.
+      module.exports = runtime;
+    }
+    // Don't bother evaluating the rest of this file if the runtime was
+    // already defined globally.
+    return;
+  }
+
+  // Define the runtime globally (as expected by generated code) as either
+  // module.exports (if we're in a module) or a new, empty object.
+  runtime = global.regeneratorRuntime = inModule ? module.exports : {};
+
+  function wrap(innerFn, outerFn, self, tryLocsList) {
+    // If outerFn provided, then outerFn.prototype instanceof Generator.
+    var generator = Object.create((outerFn || Generator).prototype);
+
+    generator._invoke = makeInvokeMethod(
+      innerFn, self || null,
+      new Context(tryLocsList || [])
+    );
+
+    return generator;
+  }
+  runtime.wrap = wrap;
+
+  // Try/catch helper to minimize deoptimizations. Returns a completion
+  // record like context.tryEntries[i].completion. This interface could
+  // have been (and was previously) designed to take a closure to be
+  // invoked without arguments, but in all the cases we care about we
+  // already have an existing method we want to call, so there's no need
+  // to create a new function object. We can even get away with assuming
+  // the method takes exactly one argument, since that happens to be true
+  // in every case, so we don't have to touch the arguments object. The
+  // only additional allocation required is the completion record, which
+  // has a stable shape and so hopefully should be cheap to allocate.
+  function tryCatch(fn, obj, arg) {
+    try {
+      return { type: "normal", arg: fn.call(obj, arg) };
+    } catch (err) {
+      return { type: "throw", arg: err };
+    }
+  }
+
+  var GenStateSuspendedStart = "suspendedStart";
+  var GenStateSuspendedYield = "suspendedYield";
+  var GenStateExecuting = "executing";
+  var GenStateCompleted = "completed";
+
+  // Returning this object from the innerFn has the same effect as
+  // breaking out of the dispatch switch statement.
+  var ContinueSentinel = {};
+
+  // Dummy constructor functions that we use as the .constructor and
+  // .constructor.prototype properties for functions that return Generator
+  // objects. For full spec compliance, you may wish to configure your
+  // minifier not to mangle the names of these two functions.
+  function Generator() {}
+  function GeneratorFunction() {}
+  function GeneratorFunctionPrototype() {}
+
+  var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype;
+  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
+  GeneratorFunctionPrototype.constructor = GeneratorFunction;
+  GeneratorFunction.displayName = "GeneratorFunction";
+
+  // Helper for defining the .next, .throw, and .return methods of the
+  // Iterator interface in terms of a single ._invoke method.
+  function defineIteratorMethods(prototype) {
+    ["next", "throw", "return"].forEach(function(method) {
+      prototype[method] = function(arg) {
+        return this._invoke(method, arg);
+      };
+    });
+  }
+
+  runtime.isGeneratorFunction = function(genFun) {
+    var ctor = typeof genFun === "function" && genFun.constructor;
+    return ctor
+      ? ctor === GeneratorFunction ||
+        // For the native GeneratorFunction constructor, the best we can
+        // do is to check its .name property.
+        (ctor.displayName || ctor.name) === "GeneratorFunction"
+      : false;
+  };
+
+  runtime.mark = function(genFun) {
+    genFun.__proto__ = GeneratorFunctionPrototype;
+    genFun.prototype = Object.create(Gp);
+    return genFun;
+  };
+
+  // Within the body of any async function, `await x` is transformed to
+  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
+  // `value instanceof AwaitArgument` to determine if the yielded value is
+  // meant to be awaited. Some may consider the name of this method too
+  // cutesy, but they are curmudgeons.
+  runtime.awrap = function(arg) {
+    return new AwaitArgument(arg);
+  };
+
+  function AwaitArgument(arg) {
+    this.arg = arg;
+  }
+
+  function AsyncIterator(generator) {
+    // This invoke function is written in a style that assumes some
+    // calling function (or Promise) will handle exceptions.
+    function invoke(method, arg) {
+      var result = generator[method](arg);
+      var value = result.value;
+      return value instanceof AwaitArgument
+        ? Promise.resolve(value.arg).then(invokeNext, invokeThrow)
+        : Promise.resolve(value).then(function(unwrapped) {
+            // When a yielded Promise is resolved, its final value becomes
+            // the .value of the Promise<{value,done}> result for the
+            // current iteration. If the Promise is rejected, however, the
+            // result for this iteration will be rejected with the same
+            // reason. Note that rejections of yielded Promises are not
+            // thrown back into the generator function, as is the case
+            // when an awaited Promise is rejected. This difference in
+            // behavior between yield and await is important, because it
+            // allows the consumer to decide what to do with the yielded
+            // rejection (swallow it and continue, manually .throw it back
+            // into the generator, abandon iteration, whatever). With
+            // await, by contrast, there is no opportunity to examine the
+            // rejection reason outside the generator function, so the
+            // only option is to throw it from the await expression, and
+            // let the generator function handle the exception.
+            result.value = unwrapped;
+            return result;
+          });
+    }
+
+    if (typeof process === "object" && process.domain) {
+      invoke = process.domain.bind(invoke);
+    }
+
+    var invokeNext = invoke.bind(generator, "next");
+    var invokeThrow = invoke.bind(generator, "throw");
+    var invokeReturn = invoke.bind(generator, "return");
+    var previousPromise;
+
+    function enqueue(method, arg) {
+      var enqueueResult =
+        // If enqueue has been called before, then we want to wait until
+        // all previous Promises have been resolved before calling invoke,
+        // so that results are always delivered in the correct order. If
+        // enqueue has not been called before, then it is important to
+        // call invoke immediately, without waiting on a callback to fire,
+        // so that the async generator function has the opportunity to do
+        // any necessary setup in a predictable way. This predictability
+        // is why the Promise constructor synchronously invokes its
+        // executor callback, and why async functions synchronously
+        // execute code before the first await. Since we implement simple
+        // async functions in terms of async generators, it is especially
+        // important to get this right, even though it requires care.
+        previousPromise ? previousPromise.then(function() {
+          return invoke(method, arg);
+        }) : new Promise(function(resolve) {
+          resolve(invoke(method, arg));
+        });
+
+      // Avoid propagating enqueueResult failures to Promises returned by
+      // later invocations of the iterator.
+      previousPromise = enqueueResult["catch"](function(ignored){});
+
+      return enqueueResult;
+    }
+
+    // Define the unified helper method that is used to implement .next,
+    // .throw, and .return (see defineIteratorMethods).
+    this._invoke = enqueue;
+  }
+
+  defineIteratorMethods(AsyncIterator.prototype);
+
+  // Note that simple async functions are implemented on top of
+  // AsyncIterator objects; they just return a Promise for the value of
+  // the final result produced by the iterator.
+  runtime.async = function(innerFn, outerFn, self, tryLocsList) {
+    var iter = new AsyncIterator(
+      wrap(innerFn, outerFn, self, tryLocsList)
+    );
+
+    return runtime.isGeneratorFunction(outerFn)
+      ? iter // If outerFn is a generator, return the full iterator.
+      : iter.next().then(function(result) {
+          return result.done ? result.value : iter.next();
+        });
+  };
+
+  function makeInvokeMethod(innerFn, self, context) {
+    var state = GenStateSuspendedStart;
+
+    return function invoke(method, arg) {
+      if (state === GenStateExecuting) {
+        throw new Error("Generator is already running");
+      }
+
+      if (state === GenStateCompleted) {
+        if (method === "throw") {
+          throw arg;
+        }
+
+        // Be forgiving, per 25.3.3.3.3 of the spec:
+        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
+        return doneResult();
+      }
+
+      while (true) {
+        var delegate = context.delegate;
+        if (delegate) {
+          if (method === "return" ||
+              (method === "throw" && delegate.iterator[method] === undefined)) {
+            // A return or throw (when the delegate iterator has no throw
+            // method) always terminates the yield* loop.
+            context.delegate = null;
+
+            // If the delegate iterator has a return method, give it a
+            // chance to clean up.
+            var returnMethod = delegate.iterator["return"];
+            if (returnMethod) {
+              var record = tryCatch(returnMethod, delegate.iterator, arg);
+              if (record.type === "throw") {
+                // If the return method threw an exception, let that
+                // exception prevail over the original return or throw.
+                method = "throw";
+                arg = record.arg;
+                continue;
+              }
+            }
+
+            if (method === "return") {
+              // Continue with the outer return, now that the delegate
+              // iterator has been terminated.
+              continue;
+            }
+          }
+
+          var record = tryCatch(
+            delegate.iterator[method],
+            delegate.iterator,
+            arg
+          );
+
+          if (record.type === "throw") {
+            context.delegate = null;
+
+            // Like returning generator.throw(uncaught), but without the
+            // overhead of an extra function call.
+            method = "throw";
+            arg = record.arg;
+            continue;
+          }
+
+          // Delegate generator ran and handled its own exceptions so
+          // regardless of what the method was, we continue as if it is
+          // "next" with an undefined arg.
+          method = "next";
+          arg = undefined;
+
+          var info = record.arg;
+          if (info.done) {
+            context[delegate.resultName] = info.value;
+            context.next = delegate.nextLoc;
+          } else {
+            state = GenStateSuspendedYield;
+            return info;
+          }
+
+          context.delegate = null;
+        }
+
+        if (method === "next") {
+          if (state === GenStateSuspendedYield) {
+            context.sent = arg;
+          } else {
+            context.sent = undefined;
+          }
+
+        } else if (method === "throw") {
+          if (state === GenStateSuspendedStart) {
+            state = GenStateCompleted;
+            throw arg;
+          }
+
+          if (context.dispatchException(arg)) {
+            // If the dispatched exception was caught by a catch block,
+            // then let that catch block handle the exception normally.
+            method = "next";
+            arg = undefined;
+          }
+
+        } else if (method === "return") {
+          context.abrupt("return", arg);
+        }
+
+        state = GenStateExecuting;
+
+        var record = tryCatch(innerFn, self, context);
+        if (record.type === "normal") {
+          // If an exception is thrown from innerFn, we leave state ===
+          // GenStateExecuting and loop back for another invocation.
+          state = context.done
+            ? GenStateCompleted
+            : GenStateSuspendedYield;
+
+          var info = {
+            value: record.arg,
+            done: context.done
+          };
+
+          if (record.arg === ContinueSentinel) {
+            if (context.delegate && method === "next") {
+              // Deliberately forget the last sent value so that we don't
+              // accidentally pass it on to the delegate.
+              arg = undefined;
+            }
+          } else {
+            return info;
+          }
+
+        } else if (record.type === "throw") {
+          state = GenStateCompleted;
+          // Dispatch the exception by looping back around to the
+          // context.dispatchException(arg) call above.
+          method = "throw";
+          arg = record.arg;
+        }
+      }
+    };
+  }
+
+  // Define Generator.prototype.{next,throw,return} in terms of the
+  // unified ._invoke helper method.
+  defineIteratorMethods(Gp);
+
+  Gp[iteratorSymbol] = function() {
+    return this;
+  };
+
+  Gp.toString = function() {
+    return "[object Generator]";
+  };
+
+  function pushTryEntry(locs) {
+    var entry = { tryLoc: locs[0] };
+
+    if (1 in locs) {
+      entry.catchLoc = locs[1];
+    }
+
+    if (2 in locs) {
+      entry.finallyLoc = locs[2];
+      entry.afterLoc = locs[3];
+    }
+
+    this.tryEntries.push(entry);
+  }
+
+  function resetTryEntry(entry) {
+    var record = entry.completion || {};
+    record.type = "normal";
+    delete record.arg;
+    entry.completion = record;
+  }
+
+  function Context(tryLocsList) {
+    // The root entry object (effectively a try statement without a catch
+    // or a finally block) gives us a place to store values thrown from
+    // locations where there is no enclosing try statement.
+    this.tryEntries = [{ tryLoc: "root" }];
+    tryLocsList.forEach(pushTryEntry, this);
+    this.reset(true);
+  }
+
+  runtime.keys = function(object) {
+    var keys = [];
+    for (var key in object) {
+      keys.push(key);
+    }
+    keys.reverse();
+
+    // Rather than returning an object with a next method, we keep
+    // things simple and return the next function itself.
+    return function next() {
+      while (keys.length) {
+        var key = keys.pop();
+        if (key in object) {
+          next.value = key;
+          next.done = false;
+          return next;
+        }
+      }
+
+      // To avoid creating an additional object, we just hang the .value
+      // and .done properties off the next function object itself. This
+      // also ensures that the minifier will not anonymize the function.
+      next.done = true;
+      return next;
+    };
+  };
+
+  function values(iterable) {
+    if (iterable) {
+      var iteratorMethod = iterable[iteratorSymbol];
+      if (iteratorMethod) {
+        return iteratorMethod.call(iterable);
+      }
+
+      if (typeof iterable.next === "function") {
+        return iterable;
+      }
+
+      if (!isNaN(iterable.length)) {
+        var i = -1, next = function next() {
+          while (++i < iterable.length) {
+            if (hasOwn.call(iterable, i)) {
+              next.value = iterable[i];
+              next.done = false;
+              return next;
+            }
+          }
+
+          next.value = undefined;
+          next.done = true;
+
+          return next;
+        };
+
+        return next.next = next;
+      }
+    }
+
+    // Return an iterator with no values.
+    return { next: doneResult };
+  }
+  runtime.values = values;
+
+  function doneResult() {
+    return { value: undefined, done: true };
+  }
+
+  Context.prototype = {
+    constructor: Context,
+
+    reset: function(skipTempReset) {
+      this.prev = 0;
+      this.next = 0;
+      this.sent = undefined;
+      this.done = false;
+      this.delegate = null;
+
+      this.tryEntries.forEach(resetTryEntry);
+
+      if (!skipTempReset) {
+        for (var name in this) {
+          // Not sure about the optimal order of these conditions:
+          if (name.charAt(0) === "t" &&
+              hasOwn.call(this, name) &&
+              !isNaN(+name.slice(1))) {
+            this[name] = undefined;
+          }
+        }
+      }
+    },
+
+    stop: function() {
+      this.done = true;
+
+      var rootEntry = this.tryEntries[0];
+      var rootRecord = rootEntry.completion;
+      if (rootRecord.type === "throw") {
+        throw rootRecord.arg;
+      }
+
+      return this.rval;
+    },
+
+    dispatchException: function(exception) {
+      if (this.done) {
+        throw exception;
+      }
+
+      var context = this;
+      function handle(loc, caught) {
+        record.type = "throw";
+        record.arg = exception;
+        context.next = loc;
+        return !!caught;
+      }
+
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        var record = entry.completion;
+
+        if (entry.tryLoc === "root") {
+          // Exception thrown outside of any try block that could handle
+          // it, so set the completion value of the entire function to
+          // throw the exception.
+          return handle("end");
+        }
+
+        if (entry.tryLoc <= this.prev) {
+          var hasCatch = hasOwn.call(entry, "catchLoc");
+          var hasFinally = hasOwn.call(entry, "finallyLoc");
+
+          if (hasCatch && hasFinally) {
+            if (this.prev < entry.catchLoc) {
+              return handle(entry.catchLoc, true);
+            } else if (this.prev < entry.finallyLoc) {
+              return handle(entry.finallyLoc);
+            }
+
+          } else if (hasCatch) {
+            if (this.prev < entry.catchLoc) {
+              return handle(entry.catchLoc, true);
+            }
+
+          } else if (hasFinally) {
+            if (this.prev < entry.finallyLoc) {
+              return handle(entry.finallyLoc);
+            }
+
+          } else {
+            throw new Error("try statement without catch or finally");
+          }
+        }
+      }
+    },
+
+    abrupt: function(type, arg) {
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        if (entry.tryLoc <= this.prev &&
+            hasOwn.call(entry, "finallyLoc") &&
+            this.prev < entry.finallyLoc) {
+          var finallyEntry = entry;
+          break;
+        }
+      }
+
+      if (finallyEntry &&
+          (type === "break" ||
+           type === "continue") &&
+          finallyEntry.tryLoc <= arg &&
+          arg <= finallyEntry.finallyLoc) {
+        // Ignore the finally entry if control is not jumping to a
+        // location outside the try/catch block.
+        finallyEntry = null;
+      }
+
+      var record = finallyEntry ? finallyEntry.completion : {};
+      record.type = type;
+      record.arg = arg;
+
+      if (finallyEntry) {
+        this.next = finallyEntry.finallyLoc;
+      } else {
+        this.complete(record);
+      }
+
+      return ContinueSentinel;
+    },
+
+    complete: function(record, afterLoc) {
+      if (record.type === "throw") {
+        throw record.arg;
+      }
+
+      if (record.type === "break" ||
+          record.type === "continue") {
+        this.next = record.arg;
+      } else if (record.type === "return") {
+        this.rval = record.arg;
+        this.next = "end";
+      } else if (record.type === "normal" && afterLoc) {
+        this.next = afterLoc;
+      }
+    },
+
+    finish: function(finallyLoc) {
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        if (entry.finallyLoc === finallyLoc) {
+          this.complete(entry.completion, entry.afterLoc);
+          resetTryEntry(entry);
+          return ContinueSentinel;
+        }
+      }
+    },
+
+    "catch": function(tryLoc) {
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        if (entry.tryLoc === tryLoc) {
+          var record = entry.completion;
+          if (record.type === "throw") {
+            var thrown = record.arg;
+            resetTryEntry(entry);
+          }
+          return thrown;
+        }
+      }
+
+      // The context.catch method must only be called with a location
+      // argument that corresponds to a known catch block.
+      throw new Error("illegal catch attempt");
+    },
+
+    delegateYield: function(iterable, resultName, nextLoc) {
+      this.delegate = {
+        iterator: values(iterable),
+        resultName: resultName,
+        nextLoc: nextLoc
+      };
+
+      return ContinueSentinel;
+    }
+  };
+})(
+  // Among the various tricks for obtaining a reference to the global
+  // object, this seems to be the most reliable technique that does not
+  // use indirect eval (which violates Content Security Policy).
+  typeof global === "object" ? global :
+  typeof window === "object" ? window :
+  typeof self === "object" ? self : this
+);
+
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"_process":190}],188:[function(require,module,exports){
+module.exports = require("./lib/polyfill");
+
+},{"./lib/polyfill":6}],189:[function(require,module,exports){
+module.exports = require("babel-core/polyfill");
+
+},{"babel-core/polyfill":188}],190:[function(require,module,exports){
+// shim for using process in browser
+
+var process = module.exports = {};
+var queue = [];
+var draining = false;
+
+function drainQueue() {
+    if (draining) {
+        return;
+    }
+    draining = true;
+    var currentQueue;
+    var len = queue.length;
+    while(len) {
+        currentQueue = queue;
+        queue = [];
+        var i = -1;
+        while (++i < len) {
+            currentQueue[i]();
+        }
+        len = queue.length;
+    }
+    draining = false;
+}
+process.nextTick = function (fun) {
+    queue.push(fun);
+    if (!draining) {
+        setTimeout(drainQueue, 0);
+    }
+};
+
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
+
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+
+process.binding = function (name) {
+    throw new Error('process.binding is not supported');
+};
+
+// TODO(shtylman)
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+    throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
+
+},{}]},{},[3])(3)
+});