diff --git a/chameleon/swagger_ui/lib/es5-shim.js b/chameleon/swagger_ui/lib/es5-shim.js
new file mode 100644
index 0000000..f94b433
--- /dev/null
+++ b/chameleon/swagger_ui/lib/es5-shim.js
@@ -0,0 +1,2065 @@
+/*!
+ * https://github.com/es-shims/es5-shim
+ * @license es5-shim Copyright 2009-2015 by contributors, MIT License
+ * see https://github.com/es-shims/es5-shim/blob/master/LICENSE
+ */
+
+// vim: ts=4 sts=4 sw=4 expandtab
+
+// Add semicolon to prevent IIFE from being passed as argument to concatenated code.
+;
+
+// UMD (Universal Module Definition)
+// see https://github.com/umdjs/umd/blob/master/templates/returnExports.js
+(function (root, factory) {
+    'use strict';
+
+    /* global define, exports, module */
+    if (typeof define === 'function' && define.amd) {
+        // AMD. Register as an anonymous module.
+        define(factory);
+    } else if (typeof exports === 'object') {
+        // Node. Does not work with strict CommonJS, but
+        // only CommonJS-like enviroments that support module.exports,
+        // like Node.
+        module.exports = factory();
+    } else {
+        // Browser globals (root is window)
+        root.returnExports = factory();
+    }
+}(this, function () {
+    /**
+     * Brings an environment as close to ECMAScript 5 compliance
+     * as is possible with the facilities of erstwhile engines.
+     *
+     * Annotated ES5: http://es5.github.com/ (specific links below)
+     * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
+     * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/
+     */
+
+    // Shortcut to an often accessed properties, in order to avoid multiple
+    // dereference that costs universally. This also holds a reference to known-good
+    // functions.
+    var $Array = Array;
+    var ArrayPrototype = $Array.prototype;
+    var $Object = Object;
+    var ObjectPrototype = $Object.prototype;
+    var $Function = Function;
+    var FunctionPrototype = $Function.prototype;
+    var $String = String;
+    var StringPrototype = $String.prototype;
+    var $Number = Number;
+    var NumberPrototype = $Number.prototype;
+    var array_slice = ArrayPrototype.slice;
+    var array_splice = ArrayPrototype.splice;
+    var array_push = ArrayPrototype.push;
+    var array_unshift = ArrayPrototype.unshift;
+    var array_concat = ArrayPrototype.concat;
+    var array_join = ArrayPrototype.join;
+    var call = FunctionPrototype.call;
+    var apply = FunctionPrototype.apply;
+    var max = Math.max;
+    var min = Math.min;
+
+    // Having a toString local variable name breaks in Opera so use to_string.
+    var to_string = ObjectPrototype.toString;
+
+    /* global Symbol */
+    /* eslint-disable one-var-declaration-per-line, no-redeclare, max-statements-per-line */
+    var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';
+    var isCallable; /* inlined from https://npmjs.com/is-callable */ var fnToStr = Function.prototype.toString, constructorRegex = /^\s*class /, isES6ClassFn = function isES6ClassFn(value) { try { var fnStr = fnToStr.call(value); var singleStripped = fnStr.replace(/\/\/.*\n/g, ''); var multiStripped = singleStripped.replace(/\/\*[.\s\S]*\*\//g, ''); var spaceStripped = multiStripped.replace(/\n/mg, ' ').replace(/ {2}/g, ' '); return constructorRegex.test(spaceStripped); } catch (e) { return false; /* not a function */ } }, tryFunctionObject = function tryFunctionObject(value) { try { if (isES6ClassFn(value)) { return false; } fnToStr.call(value); return true; } catch (e) { return false; } }, fnClass = '[object Function]', genClass = '[object GeneratorFunction]', isCallable = function isCallable(value) { if (!value) { return false; } if (typeof value !== 'function' && typeof value !== 'object') { return false; } if (hasToStringTag) { return tryFunctionObject(value); } if (isES6ClassFn(value)) { return false; } var strClass = to_string.call(value); return strClass === fnClass || strClass === genClass; };
+
+    var isRegex; /* inlined from https://npmjs.com/is-regex */ var regexExec = RegExp.prototype.exec, tryRegexExec = function tryRegexExec(value) { try { regexExec.call(value); return true; } catch (e) { return false; } }, regexClass = '[object RegExp]'; isRegex = function isRegex(value) { if (typeof value !== 'object') { return false; } return hasToStringTag ? tryRegexExec(value) : to_string.call(value) === regexClass; };
+    var isString; /* inlined from https://npmjs.com/is-string */ var strValue = String.prototype.valueOf, tryStringObject = function tryStringObject(value) { try { strValue.call(value); return true; } catch (e) { return false; } }, stringClass = '[object String]'; isString = function isString(value) { if (typeof value === 'string') { return true; } if (typeof value !== 'object') { return false; } return hasToStringTag ? tryStringObject(value) : to_string.call(value) === stringClass; };
+    /* eslint-enable one-var-declaration-per-line, no-redeclare, max-statements-per-line */
+
+    /* inlined from http://npmjs.com/define-properties */
+    var supportsDescriptors = $Object.defineProperty && (function () {
+        try {
+            var obj = {};
+            $Object.defineProperty(obj, 'x', { enumerable: false, value: obj });
+            for (var _ in obj) { // jscs:ignore disallowUnusedVariables
+                return false;
+            }
+            return obj.x === obj;
+        } catch (e) { /* this is ES3 */
+            return false;
+        }
+    }());
+    var defineProperties = (function (has) {
+        // Define configurable, writable, and non-enumerable props
+        // if they don't exist.
+        var defineProperty;
+        if (supportsDescriptors) {
+            defineProperty = function (object, name, method, forceAssign) {
+                if (!forceAssign && (name in object)) {
+                    return;
+                }
+                $Object.defineProperty(object, name, {
+                    configurable: true,
+                    enumerable: false,
+                    writable: true,
+                    value: method
+                });
+            };
+        } else {
+            defineProperty = function (object, name, method, forceAssign) {
+                if (!forceAssign && (name in object)) {
+                    return;
+                }
+                object[name] = method;
+            };
+        }
+        return function defineProperties(object, map, forceAssign) {
+            for (var name in map) {
+                if (has.call(map, name)) {
+                    defineProperty(object, name, map[name], forceAssign);
+                }
+            }
+        };
+    }(ObjectPrototype.hasOwnProperty));
+
+    //
+    // Util
+    // ======
+    //
+
+    /* replaceable with https://npmjs.com/package/es-abstract /helpers/isPrimitive */
+    var isPrimitive = function isPrimitive(input) {
+        var type = typeof input;
+        return input === null || (type !== 'object' && type !== 'function');
+    };
+
+    var isActualNaN = $Number.isNaN || function isActualNaN(x) {
+        return x !== x;
+    };
+
+    var ES = {
+        // ES5 9.4
+        // http://es5.github.com/#x9.4
+        // http://jsperf.com/to-integer
+        /* replaceable with https://npmjs.com/package/es-abstract ES5.ToInteger */
+        ToInteger: function ToInteger(num) {
+            var n = +num;
+            if (isActualNaN(n)) {
+                n = 0;
+            } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+                n = (n > 0 || -1) * Math.floor(Math.abs(n));
+            }
+            return n;
+        },
+
+        /* replaceable with https://npmjs.com/package/es-abstract ES5.ToPrimitive */
+        ToPrimitive: function ToPrimitive(input) {
+            var val, valueOf, toStr;
+            if (isPrimitive(input)) {
+                return input;
+            }
+            valueOf = input.valueOf;
+            if (isCallable(valueOf)) {
+                val = valueOf.call(input);
+                if (isPrimitive(val)) {
+                    return val;
+                }
+            }
+            toStr = input.toString;
+            if (isCallable(toStr)) {
+                val = toStr.call(input);
+                if (isPrimitive(val)) {
+                    return val;
+                }
+            }
+            throw new TypeError();
+        },
+
+        // ES5 9.9
+        // http://es5.github.com/#x9.9
+        /* replaceable with https://npmjs.com/package/es-abstract ES5.ToObject */
+        ToObject: function (o) {
+            if (o == null) { // this matches both null and undefined
+                throw new TypeError("can't convert " + o + ' to object');
+            }
+            return $Object(o);
+        },
+
+        /* replaceable with https://npmjs.com/package/es-abstract ES5.ToUint32 */
+        ToUint32: function ToUint32(x) {
+            return x >>> 0;
+        }
+    };
+
+    //
+    // Function
+    // ========
+    //
+
+    // ES-5 15.3.4.5
+    // http://es5.github.com/#x15.3.4.5
+
+    var Empty = function Empty() {};
+
+    defineProperties(FunctionPrototype, {
+        bind: function bind(that) { // .length is 1
+            // 1. Let Target be the this value.
+            var target = this;
+            // 2. If IsCallable(Target) is false, throw a TypeError exception.
+            if (!isCallable(target)) {
+                throw new TypeError('Function.prototype.bind called on incompatible ' + target);
+            }
+            // 3. Let A be a new (possibly empty) internal list of all of the
+            //   argument values provided after thisArg (arg1, arg2 etc), in order.
+            // XXX slicedArgs will stand in for "A" if used
+            var args = array_slice.call(arguments, 1); // for normal call
+            // 4. Let F be a new native ECMAScript object.
+            // 11. Set the [[Prototype]] internal property of F to the standard
+            //   built-in Function prototype object as specified in 15.3.3.1.
+            // 12. Set the [[Call]] internal property of F as described in
+            //   15.3.4.5.1.
+            // 13. Set the [[Construct]] internal property of F as described in
+            //   15.3.4.5.2.
+            // 14. Set the [[HasInstance]] internal property of F as described in
+            //   15.3.4.5.3.
+            var bound;
+            var binder = function () {
+
+                if (this instanceof bound) {
+                    // 15.3.4.5.2 [[Construct]]
+                    // When the [[Construct]] internal method of a function object,
+                    // F that was created using the bind function is called with a
+                    // list of arguments ExtraArgs, the following steps are taken:
+                    // 1. Let target be the value of F's [[TargetFunction]]
+                    //   internal property.
+                    // 2. If target has no [[Construct]] internal method, a
+                    //   TypeError exception is thrown.
+                    // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
+                    //   property.
+                    // 4. Let args be a new list containing the same values as the
+                    //   list boundArgs in the same order followed by the same
+                    //   values as the list ExtraArgs in the same order.
+                    // 5. Return the result of calling the [[Construct]] internal
+                    //   method of target providing args as the arguments.
+
+                    var result = apply.call(
+                        target,
+                        this,
+                        array_concat.call(args, array_slice.call(arguments))
+                    );
+                    if ($Object(result) === result) {
+                        return result;
+                    }
+                    return this;
+
+                } else {
+                    // 15.3.4.5.1 [[Call]]
+                    // When the [[Call]] internal method of a function object, F,
+                    // which was created using the bind function is called with a
+                    // this value and a list of arguments ExtraArgs, the following
+                    // steps are taken:
+                    // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
+                    //   property.
+                    // 2. Let boundThis be the value of F's [[BoundThis]] internal
+                    //   property.
+                    // 3. Let target be the value of F's [[TargetFunction]] internal
+                    //   property.
+                    // 4. Let args be a new list containing the same values as the
+                    //   list boundArgs in the same order followed by the same
+                    //   values as the list ExtraArgs in the same order.
+                    // 5. Return the result of calling the [[Call]] internal method
+                    //   of target providing boundThis as the this value and
+                    //   providing args as the arguments.
+
+                    // equiv: target.call(this, ...boundArgs, ...args)
+                    return apply.call(
+                        target,
+                        that,
+                        array_concat.call(args, array_slice.call(arguments))
+                    );
+
+                }
+
+            };
+
+            // 15. If the [[Class]] internal property of Target is "Function", then
+            //     a. Let L be the length property of Target minus the length of A.
+            //     b. Set the length own property of F to either 0 or L, whichever is
+            //       larger.
+            // 16. Else set the length own property of F to 0.
+
+            var boundLength = max(0, target.length - args.length);
+
+            // 17. Set the attributes of the length own property of F to the values
+            //   specified in 15.3.5.1.
+            var boundArgs = [];
+            for (var i = 0; i < boundLength; i++) {
+                array_push.call(boundArgs, '$' + i);
+            }
+
+            // XXX Build a dynamic function with desired amount of arguments is the only
+            // way to set the length property of a function.
+            // In environments where Content Security Policies enabled (Chrome extensions,
+            // for ex.) all use of eval or Function costructor throws an exception.
+            // However in all of these environments Function.prototype.bind exists
+            // and so this code will never be executed.
+            bound = $Function('binder', 'return function (' + array_join.call(boundArgs, ',') + '){ return binder.apply(this, arguments); }')(binder);
+
+            if (target.prototype) {
+                Empty.prototype = target.prototype;
+                bound.prototype = new Empty();
+                // Clean up dangling references.
+                Empty.prototype = null;
+            }
+
+            // TODO
+            // 18. Set the [[Extensible]] internal property of F to true.
+
+            // TODO
+            // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
+            // 20. Call the [[DefineOwnProperty]] internal method of F with
+            //   arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
+            //   thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
+            //   false.
+            // 21. Call the [[DefineOwnProperty]] internal method of F with
+            //   arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
+            //   [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
+            //   and false.
+
+            // TODO
+            // NOTE Function objects created using Function.prototype.bind do not
+            // have a prototype property or the [[Code]], [[FormalParameters]], and
+            // [[Scope]] internal properties.
+            // XXX can't delete prototype in pure-js.
+
+            // 22. Return F.
+            return bound;
+        }
+    });
+
+    // _Please note: Shortcuts are defined after `Function.prototype.bind` as we
+    // use it in defining shortcuts.
+    var owns = call.bind(ObjectPrototype.hasOwnProperty);
+    var toStr = call.bind(ObjectPrototype.toString);
+    var arraySlice = call.bind(array_slice);
+    var arraySliceApply = apply.bind(array_slice);
+    var strSlice = call.bind(StringPrototype.slice);
+    var strSplit = call.bind(StringPrototype.split);
+    var strIndexOf = call.bind(StringPrototype.indexOf);
+    var pushCall = call.bind(array_push);
+    var isEnum = call.bind(ObjectPrototype.propertyIsEnumerable);
+    var arraySort = call.bind(ArrayPrototype.sort);
+
+    //
+    // Array
+    // =====
+    //
+
+    var isArray = $Array.isArray || function isArray(obj) {
+        return toStr(obj) === '[object Array]';
+    };
+
+    // ES5 15.4.4.12
+    // http://es5.github.com/#x15.4.4.13
+    // Return len+argCount.
+    // [bugfix, ielt8]
+    // IE < 8 bug: [].unshift(0) === undefined but should be "1"
+    var hasUnshiftReturnValueBug = [].unshift(0) !== 1;
+    defineProperties(ArrayPrototype, {
+        unshift: function () {
+            array_unshift.apply(this, arguments);
+            return this.length;
+        }
+    }, hasUnshiftReturnValueBug);
+
+    // ES5 15.4.3.2
+    // http://es5.github.com/#x15.4.3.2
+    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray
+    defineProperties($Array, { isArray: isArray });
+
+    // The IsCallable() check in the Array functions
+    // has been replaced with a strict check on the
+    // internal class of the object to trap cases where
+    // the provided function was actually a regular
+    // expression literal, which in V8 and
+    // JavaScriptCore is a typeof "function".  Only in
+    // V8 are regular expression literals permitted as
+    // reduce parameters, so it is desirable in the
+    // general case for the shim to match the more
+    // strict and common behavior of rejecting regular
+    // expressions.
+
+    // ES5 15.4.4.18
+    // http://es5.github.com/#x15.4.4.18
+    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach
+
+    // Check failure of by-index access of string characters (IE < 9)
+    // and failure of `0 in boxedString` (Rhino)
+    var boxedString = $Object('a');
+    var splitString = boxedString[0] !== 'a' || !(0 in boxedString);
+
+    var properlyBoxesContext = function properlyBoxed(method) {
+        // Check node 0.6.21 bug where third parameter is not boxed
+        var properlyBoxesNonStrict = true;
+        var properlyBoxesStrict = true;
+        var threwException = false;
+        if (method) {
+            try {
+                method.call('foo', function (_, __, context) {
+                    if (typeof context !== 'object') {
+                        properlyBoxesNonStrict = false;
+                    }
+                });
+
+                method.call([1], function () {
+                    'use strict';
+
+                    properlyBoxesStrict = typeof this === 'string';
+                }, 'x');
+            } catch (e) {
+                threwException = true;
+            }
+        }
+        return !!method && !threwException && properlyBoxesNonStrict && properlyBoxesStrict;
+    };
+
+    defineProperties(ArrayPrototype, {
+        forEach: function forEach(callbackfn/*, thisArg*/) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var i = -1;
+            var length = ES.ToUint32(self.length);
+            var T;
+            if (arguments.length > 1) {
+                T = arguments[1];
+            }
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.forEach callback must be a function');
+            }
+
+            while (++i < length) {
+                if (i in self) {
+                    // Invoke the callback function with call, passing arguments:
+                    // context, property value, property key, thisArg object
+                    if (typeof T === 'undefined') {
+                        callbackfn(self[i], i, object);
+                    } else {
+                        callbackfn.call(T, self[i], i, object);
+                    }
+                }
+            }
+        }
+    }, !properlyBoxesContext(ArrayPrototype.forEach));
+
+    // ES5 15.4.4.19
+    // http://es5.github.com/#x15.4.4.19
+    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map
+    defineProperties(ArrayPrototype, {
+        map: function map(callbackfn/*, thisArg*/) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var length = ES.ToUint32(self.length);
+            var result = $Array(length);
+            var T;
+            if (arguments.length > 1) {
+                T = arguments[1];
+            }
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.map callback must be a function');
+            }
+
+            for (var i = 0; i < length; i++) {
+                if (i in self) {
+                    if (typeof T === 'undefined') {
+                        result[i] = callbackfn(self[i], i, object);
+                    } else {
+                        result[i] = callbackfn.call(T, self[i], i, object);
+                    }
+                }
+            }
+            return result;
+        }
+    }, !properlyBoxesContext(ArrayPrototype.map));
+
+    // ES5 15.4.4.20
+    // http://es5.github.com/#x15.4.4.20
+    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter
+    defineProperties(ArrayPrototype, {
+        filter: function filter(callbackfn/*, thisArg*/) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var length = ES.ToUint32(self.length);
+            var result = [];
+            var value;
+            var T;
+            if (arguments.length > 1) {
+                T = arguments[1];
+            }
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.filter callback must be a function');
+            }
+
+            for (var i = 0; i < length; i++) {
+                if (i in self) {
+                    value = self[i];
+                    if (typeof T === 'undefined' ? callbackfn(value, i, object) : callbackfn.call(T, value, i, object)) {
+                        pushCall(result, value);
+                    }
+                }
+            }
+            return result;
+        }
+    }, !properlyBoxesContext(ArrayPrototype.filter));
+
+    // ES5 15.4.4.16
+    // http://es5.github.com/#x15.4.4.16
+    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every
+    defineProperties(ArrayPrototype, {
+        every: function every(callbackfn/*, thisArg*/) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var length = ES.ToUint32(self.length);
+            var T;
+            if (arguments.length > 1) {
+                T = arguments[1];
+            }
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.every callback must be a function');
+            }
+
+            for (var i = 0; i < length; i++) {
+                if (i in self && !(typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) {
+                    return false;
+                }
+            }
+            return true;
+        }
+    }, !properlyBoxesContext(ArrayPrototype.every));
+
+    // ES5 15.4.4.17
+    // http://es5.github.com/#x15.4.4.17
+    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some
+    defineProperties(ArrayPrototype, {
+        some: function some(callbackfn/*, thisArg */) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var length = ES.ToUint32(self.length);
+            var T;
+            if (arguments.length > 1) {
+                T = arguments[1];
+            }
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.some callback must be a function');
+            }
+
+            for (var i = 0; i < length; i++) {
+                if (i in self && (typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }, !properlyBoxesContext(ArrayPrototype.some));
+
+    // ES5 15.4.4.21
+    // http://es5.github.com/#x15.4.4.21
+    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce
+    var reduceCoercesToObject = false;
+    if (ArrayPrototype.reduce) {
+        reduceCoercesToObject = typeof ArrayPrototype.reduce.call('es5', function (_, __, ___, list) {
+            return list;
+        }) === 'object';
+    }
+    defineProperties(ArrayPrototype, {
+        reduce: function reduce(callbackfn/*, initialValue*/) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var length = ES.ToUint32(self.length);
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.reduce callback must be a function');
+            }
+
+            // no value to return if no initial value and an empty array
+            if (length === 0 && arguments.length === 1) {
+                throw new TypeError('reduce of empty array with no initial value');
+            }
+
+            var i = 0;
+            var result;
+            if (arguments.length >= 2) {
+                result = arguments[1];
+            } else {
+                do {
+                    if (i in self) {
+                        result = self[i++];
+                        break;
+                    }
+
+                    // if array contains no values, no initial value to return
+                    if (++i >= length) {
+                        throw new TypeError('reduce of empty array with no initial value');
+                    }
+                } while (true);
+            }
+
+            for (; i < length; i++) {
+                if (i in self) {
+                    result = callbackfn(result, self[i], i, object);
+                }
+            }
+
+            return result;
+        }
+    }, !reduceCoercesToObject);
+
+    // ES5 15.4.4.22
+    // http://es5.github.com/#x15.4.4.22
+    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight
+    var reduceRightCoercesToObject = false;
+    if (ArrayPrototype.reduceRight) {
+        reduceRightCoercesToObject = typeof ArrayPrototype.reduceRight.call('es5', function (_, __, ___, list) {
+            return list;
+        }) === 'object';
+    }
+    defineProperties(ArrayPrototype, {
+        reduceRight: function reduceRight(callbackfn/*, initial*/) {
+            var object = ES.ToObject(this);
+            var self = splitString && isString(this) ? strSplit(this, '') : object;
+            var length = ES.ToUint32(self.length);
+
+            // If no callback function or if callback is not a callable function
+            if (!isCallable(callbackfn)) {
+                throw new TypeError('Array.prototype.reduceRight callback must be a function');
+            }
+
+            // no value to return if no initial value, empty array
+            if (length === 0 && arguments.length === 1) {
+                throw new TypeError('reduceRight of empty array with no initial value');
+            }
+
+            var result;
+            var i = length - 1;
+            if (arguments.length >= 2) {
+                result = arguments[1];
+            } else {
+                do {
+                    if (i in self) {
+                        result = self[i--];
+                        break;
+                    }
+
+                    // if array contains no values, no initial value to return
+                    if (--i < 0) {
+                        throw new TypeError('reduceRight of empty array with no initial value');
+                    }
+                } while (true);
+            }
+
+            if (i < 0) {
+                return result;
+            }
+
+            do {
+                if (i in self) {
+                    result = callbackfn(result, self[i], i, object);
+                }
+            } while (i--);
+
+            return result;
+        }
+    }, !reduceRightCoercesToObject);
+
+    // ES5 15.4.4.14
+    // http://es5.github.com/#x15.4.4.14
+    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf
+    var hasFirefox2IndexOfBug = ArrayPrototype.indexOf && [0, 1].indexOf(1, 2) !== -1;
+    defineProperties(ArrayPrototype, {
+        indexOf: function indexOf(searchElement/*, fromIndex */) {
+            var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this);
+            var length = ES.ToUint32(self.length);
+
+            if (length === 0) {
+                return -1;
+            }
+
+            var i = 0;
+            if (arguments.length > 1) {
+                i = ES.ToInteger(arguments[1]);
+            }
+
+            // handle negative indices
+            i = i >= 0 ? i : max(0, length + i);
+            for (; i < length; i++) {
+                if (i in self && self[i] === searchElement) {
+                    return i;
+                }
+            }
+            return -1;
+        }
+    }, hasFirefox2IndexOfBug);
+
+    // ES5 15.4.4.15
+    // http://es5.github.com/#x15.4.4.15
+    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf
+    var hasFirefox2LastIndexOfBug = ArrayPrototype.lastIndexOf && [0, 1].lastIndexOf(0, -3) !== -1;
+    defineProperties(ArrayPrototype, {
+        lastIndexOf: function lastIndexOf(searchElement/*, fromIndex */) {
+            var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this);
+            var length = ES.ToUint32(self.length);
+
+            if (length === 0) {
+                return -1;
+            }
+            var i = length - 1;
+            if (arguments.length > 1) {
+                i = min(i, ES.ToInteger(arguments[1]));
+            }
+            // handle negative indices
+            i = i >= 0 ? i : length - Math.abs(i);
+            for (; i >= 0; i--) {
+                if (i in self && searchElement === self[i]) {
+                    return i;
+                }
+            }
+            return -1;
+        }
+    }, hasFirefox2LastIndexOfBug);
+
+    // ES5 15.4.4.12
+    // http://es5.github.com/#x15.4.4.12
+    var spliceNoopReturnsEmptyArray = (function () {
+        var a = [1, 2];
+        var result = a.splice();
+        return a.length === 2 && isArray(result) && result.length === 0;
+    }());
+    defineProperties(ArrayPrototype, {
+        // Safari 5.0 bug where .splice() returns undefined
+        splice: function splice(start, deleteCount) {
+            if (arguments.length === 0) {
+                return [];
+            } else {
+                return array_splice.apply(this, arguments);
+            }
+        }
+    }, !spliceNoopReturnsEmptyArray);
+
+    var spliceWorksWithEmptyObject = (function () {
+        var obj = {};
+        ArrayPrototype.splice.call(obj, 0, 0, 1);
+        return obj.length === 1;
+    }());
+    defineProperties(ArrayPrototype, {
+        splice: function splice(start, deleteCount) {
+            if (arguments.length === 0) {
+                return [];
+            }
+            var args = arguments;
+            this.length = max(ES.ToInteger(this.length), 0);
+            if (arguments.length > 0 && typeof deleteCount !== 'number') {
+                args = arraySlice(arguments);
+                if (args.length < 2) {
+                    pushCall(args, this.length - start);
+                } else {
+                    args[1] = ES.ToInteger(deleteCount);
+                }
+            }
+            return array_splice.apply(this, args);
+        }
+    }, !spliceWorksWithEmptyObject);
+    var spliceWorksWithLargeSparseArrays = (function () {
+        // Per https://github.com/es-shims/es5-shim/issues/295
+        // Safari 7/8 breaks with sparse arrays of size 1e5 or greater
+        var arr = new $Array(1e5);
+        // note: the index MUST be 8 or larger or the test will false pass
+        arr[8] = 'x';
+        arr.splice(1, 1);
+        // note: this test must be defined *after* the indexOf shim
+        // per https://github.com/es-shims/es5-shim/issues/313
+        return arr.indexOf('x') === 7;
+    }());
+    var spliceWorksWithSmallSparseArrays = (function () {
+        // Per https://github.com/es-shims/es5-shim/issues/295
+        // Opera 12.15 breaks on this, no idea why.
+        var n = 256;
+        var arr = [];
+        arr[n] = 'a';
+        arr.splice(n + 1, 0, 'b');
+        return arr[n] === 'a';
+    }());
+    defineProperties(ArrayPrototype, {
+        splice: function splice(start, deleteCount) {
+            var O = ES.ToObject(this);
+            var A = [];
+            var len = ES.ToUint32(O.length);
+            var relativeStart = ES.ToInteger(start);
+            var actualStart = relativeStart < 0 ? max((len + relativeStart), 0) : min(relativeStart, len);
+            var actualDeleteCount = min(max(ES.ToInteger(deleteCount), 0), len - actualStart);
+
+            var k = 0;
+            var from;
+            while (k < actualDeleteCount) {
+                from = $String(actualStart + k);
+                if (owns(O, from)) {
+                    A[k] = O[from];
+                }
+                k += 1;
+            }
+
+            var items = arraySlice(arguments, 2);
+            var itemCount = items.length;
+            var to;
+            if (itemCount < actualDeleteCount) {
+                k = actualStart;
+                var maxK = len - actualDeleteCount;
+                while (k < maxK) {
+                    from = $String(k + actualDeleteCount);
+                    to = $String(k + itemCount);
+                    if (owns(O, from)) {
+                        O[to] = O[from];
+                    } else {
+                        delete O[to];
+                    }
+                    k += 1;
+                }
+                k = len;
+                var minK = len - actualDeleteCount + itemCount;
+                while (k > minK) {
+                    delete O[k - 1];
+                    k -= 1;
+                }
+            } else if (itemCount > actualDeleteCount) {
+                k = len - actualDeleteCount;
+                while (k > actualStart) {
+                    from = $String(k + actualDeleteCount - 1);
+                    to = $String(k + itemCount - 1);
+                    if (owns(O, from)) {
+                        O[to] = O[from];
+                    } else {
+                        delete O[to];
+                    }
+                    k -= 1;
+                }
+            }
+            k = actualStart;
+            for (var i = 0; i < items.length; ++i) {
+                O[k] = items[i];
+                k += 1;
+            }
+            O.length = len - actualDeleteCount + itemCount;
+
+            return A;
+        }
+    }, !spliceWorksWithLargeSparseArrays || !spliceWorksWithSmallSparseArrays);
+
+    var originalJoin = ArrayPrototype.join;
+    var hasStringJoinBug;
+    try {
+        hasStringJoinBug = Array.prototype.join.call('123', ',') !== '1,2,3';
+    } catch (e) {
+        hasStringJoinBug = true;
+    }
+    if (hasStringJoinBug) {
+        defineProperties(ArrayPrototype, {
+            join: function join(separator) {
+                var sep = typeof separator === 'undefined' ? ',' : separator;
+                return originalJoin.call(isString(this) ? strSplit(this, '') : this, sep);
+            }
+        }, hasStringJoinBug);
+    }
+
+    var hasJoinUndefinedBug = [1, 2].join(undefined) !== '1,2';
+    if (hasJoinUndefinedBug) {
+        defineProperties(ArrayPrototype, {
+            join: function join(separator) {
+                var sep = typeof separator === 'undefined' ? ',' : separator;
+                return originalJoin.call(this, sep);
+            }
+        }, hasJoinUndefinedBug);
+    }
+
+    var pushShim = function push(item) {
+        var O = ES.ToObject(this);
+        var n = ES.ToUint32(O.length);
+        var i = 0;
+        while (i < arguments.length) {
+            O[n + i] = arguments[i];
+            i += 1;
+        }
+        O.length = n + i;
+        return n + i;
+    };
+
+    var pushIsNotGeneric = (function () {
+        var obj = {};
+        var result = Array.prototype.push.call(obj, undefined);
+        return result !== 1 || obj.length !== 1 || typeof obj[0] !== 'undefined' || !owns(obj, 0);
+    }());
+    defineProperties(ArrayPrototype, {
+        push: function push(item) {
+            if (isArray(this)) {
+                return array_push.apply(this, arguments);
+            }
+            return pushShim.apply(this, arguments);
+        }
+    }, pushIsNotGeneric);
+
+    // This fixes a very weird bug in Opera 10.6 when pushing `undefined
+    var pushUndefinedIsWeird = (function () {
+        var arr = [];
+        var result = arr.push(undefined);
+        return result !== 1 || arr.length !== 1 || typeof arr[0] !== 'undefined' || !owns(arr, 0);
+    }());
+    defineProperties(ArrayPrototype, { push: pushShim }, pushUndefinedIsWeird);
+
+    // ES5 15.2.3.14
+    // http://es5.github.io/#x15.4.4.10
+    // Fix boxed string bug
+    defineProperties(ArrayPrototype, {
+        slice: function (start, end) {
+            var arr = isString(this) ? strSplit(this, '') : this;
+            return arraySliceApply(arr, arguments);
+        }
+    }, splitString);
+
+    var sortIgnoresNonFunctions = (function () {
+        try {
+            [1, 2].sort(null);
+            [1, 2].sort({});
+            return true;
+        } catch (e) {}
+        return false;
+    }());
+    var sortThrowsOnRegex = (function () {
+        // this is a problem in Firefox 4, in which `typeof /a/ === 'function'`
+        try {
+            [1, 2].sort(/a/);
+            return false;
+        } catch (e) {}
+        return true;
+    }());
+    var sortIgnoresUndefined = (function () {
+        // applies in IE 8, for one.
+        try {
+            [1, 2].sort(undefined);
+            return true;
+        } catch (e) {}
+        return false;
+    }());
+    defineProperties(ArrayPrototype, {
+        sort: function sort(compareFn) {
+            if (typeof compareFn === 'undefined') {
+                return arraySort(this);
+            }
+            if (!isCallable(compareFn)) {
+                throw new TypeError('Array.prototype.sort callback must be a function');
+            }
+            return arraySort(this, compareFn);
+        }
+    }, sortIgnoresNonFunctions || !sortIgnoresUndefined || !sortThrowsOnRegex);
+
+    //
+    // Object
+    // ======
+    //
+
+    // ES5 15.2.3.14
+    // http://es5.github.com/#x15.2.3.14
+
+    // http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation
+    var hasDontEnumBug = !isEnum({ 'toString': null }, 'toString');
+    var hasProtoEnumBug = isEnum(function () {}, 'prototype');
+    var hasStringEnumBug = !owns('x', '0');
+    var equalsConstructorPrototype = function (o) {
+        var ctor = o.constructor;
+        return ctor && ctor.prototype === o;
+    };
+    var blacklistedKeys = {
+        $window: true,
+        $console: true,
+        $parent: true,
+        $self: true,
+        $frame: true,
+        $frames: true,
+        $frameElement: true,
+        $webkitIndexedDB: true,
+        $webkitStorageInfo: true,
+        $external: true
+    };
+    var hasAutomationEqualityBug = (function () {
+        /* globals window */
+        if (typeof window === 'undefined') {
+            return false;
+        }
+        for (var k in window) {
+            try {
+                if (!blacklistedKeys['$' + k] && owns(window, k) && window[k] !== null && typeof window[k] === 'object') {
+                    equalsConstructorPrototype(window[k]);
+                }
+            } catch (e) {
+                return true;
+            }
+        }
+        return false;
+    }());
+    var equalsConstructorPrototypeIfNotBuggy = function (object) {
+        if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+            return equalsConstructorPrototype(object);
+        }
+        try {
+            return equalsConstructorPrototype(object);
+        } catch (e) {
+            return false;
+        }
+    };
+    var dontEnums = [
+        'toString',
+        'toLocaleString',
+        'valueOf',
+        'hasOwnProperty',
+        'isPrototypeOf',
+        'propertyIsEnumerable',
+        'constructor'
+    ];
+    var dontEnumsLength = dontEnums.length;
+
+    // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js
+    // can be replaced with require('is-arguments') if we ever use a build process instead
+    var isStandardArguments = function isArguments(value) {
+        return toStr(value) === '[object Arguments]';
+    };
+    var isLegacyArguments = function isArguments(value) {
+        return value !== null &&
+            typeof value === 'object' &&
+            typeof value.length === 'number' &&
+            value.length >= 0 &&
+            !isArray(value) &&
+            isCallable(value.callee);
+    };
+    var isArguments = isStandardArguments(arguments) ? isStandardArguments : isLegacyArguments;
+
+    defineProperties($Object, {
+        keys: function keys(object) {
+            var isFn = isCallable(object);
+            var isArgs = isArguments(object);
+            var isObject = object !== null && typeof object === 'object';
+            var isStr = isObject && isString(object);
+
+            if (!isObject && !isFn && !isArgs) {
+                throw new TypeError('Object.keys called on a non-object');
+            }
+
+            var theKeys = [];
+            var skipProto = hasProtoEnumBug && isFn;
+            if ((isStr && hasStringEnumBug) || isArgs) {
+                for (var i = 0; i < object.length; ++i) {
+                    pushCall(theKeys, $String(i));
+                }
+            }
+
+            if (!isArgs) {
+                for (var name in object) {
+                    if (!(skipProto && name === 'prototype') && owns(object, name)) {
+                        pushCall(theKeys, $String(name));
+                    }
+                }
+            }
+
+            if (hasDontEnumBug) {
+                var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+                for (var j = 0; j < dontEnumsLength; j++) {
+                    var dontEnum = dontEnums[j];
+                    if (!(skipConstructor && dontEnum === 'constructor') && owns(object, dontEnum)) {
+                        pushCall(theKeys, dontEnum);
+                    }
+                }
+            }
+            return theKeys;
+        }
+    });
+
+    var keysWorksWithArguments = $Object.keys && (function () {
+        // Safari 5.0 bug
+        return $Object.keys(arguments).length === 2;
+    }(1, 2));
+    var keysHasArgumentsLengthBug = $Object.keys && (function () {
+        var argKeys = $Object.keys(arguments);
+        return arguments.length !== 1 || argKeys.length !== 1 || argKeys[0] !== 1;
+    }(1));
+    var originalKeys = $Object.keys;
+    defineProperties($Object, {
+        keys: function keys(object) {
+            if (isArguments(object)) {
+                return originalKeys(arraySlice(object));
+            } else {
+                return originalKeys(object);
+            }
+        }
+    }, !keysWorksWithArguments || keysHasArgumentsLengthBug);
+
+    //
+    // Date
+    // ====
+    //
+
+    var hasNegativeMonthYearBug = new Date(-3509827329600292).getUTCMonth() !== 0;
+    var aNegativeTestDate = new Date(-1509842289600292);
+    var aPositiveTestDate = new Date(1449662400000);
+    var hasToUTCStringFormatBug = aNegativeTestDate.toUTCString() !== 'Mon, 01 Jan -45875 11:59:59 GMT';
+    var hasToDateStringFormatBug;
+    var hasToStringFormatBug;
+    var timeZoneOffset = aNegativeTestDate.getTimezoneOffset();
+    if (timeZoneOffset < -720) {
+        hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Tue Jan 02 -45875';
+        hasToStringFormatBug = !(/^Thu Dec 10 2015 \d\d:\d\d:\d\d GMT[-\+]\d\d\d\d(?: |$)/).test(aPositiveTestDate.toString());
+    } else {
+        hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Mon Jan 01 -45875';
+        hasToStringFormatBug = !(/^Wed Dec 09 2015 \d\d:\d\d:\d\d GMT[-\+]\d\d\d\d(?: |$)/).test(aPositiveTestDate.toString());
+    }
+
+    var originalGetFullYear = call.bind(Date.prototype.getFullYear);
+    var originalGetMonth = call.bind(Date.prototype.getMonth);
+    var originalGetDate = call.bind(Date.prototype.getDate);
+    var originalGetUTCFullYear = call.bind(Date.prototype.getUTCFullYear);
+    var originalGetUTCMonth = call.bind(Date.prototype.getUTCMonth);
+    var originalGetUTCDate = call.bind(Date.prototype.getUTCDate);
+    var originalGetUTCDay = call.bind(Date.prototype.getUTCDay);
+    var originalGetUTCHours = call.bind(Date.prototype.getUTCHours);
+    var originalGetUTCMinutes = call.bind(Date.prototype.getUTCMinutes);
+    var originalGetUTCSeconds = call.bind(Date.prototype.getUTCSeconds);
+    var originalGetUTCMilliseconds = call.bind(Date.prototype.getUTCMilliseconds);
+    var dayName = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
+    var monthName = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
+    var daysInMonth = function daysInMonth(month, year) {
+        return originalGetDate(new Date(year, month, 0));
+    };
+
+    defineProperties(Date.prototype, {
+        getFullYear: function getFullYear() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var year = originalGetFullYear(this);
+            if (year < 0 && originalGetMonth(this) > 11) {
+                return year + 1;
+            }
+            return year;
+        },
+        getMonth: function getMonth() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var year = originalGetFullYear(this);
+            var month = originalGetMonth(this);
+            if (year < 0 && month > 11) {
+                return 0;
+            }
+            return month;
+        },
+        getDate: function getDate() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var year = originalGetFullYear(this);
+            var month = originalGetMonth(this);
+            var date = originalGetDate(this);
+            if (year < 0 && month > 11) {
+                if (month === 12) {
+                    return date;
+                }
+                var days = daysInMonth(0, year + 1);
+                return (days - date) + 1;
+            }
+            return date;
+        },
+        getUTCFullYear: function getUTCFullYear() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var year = originalGetUTCFullYear(this);
+            if (year < 0 && originalGetUTCMonth(this) > 11) {
+                return year + 1;
+            }
+            return year;
+        },
+        getUTCMonth: function getUTCMonth() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var year = originalGetUTCFullYear(this);
+            var month = originalGetUTCMonth(this);
+            if (year < 0 && month > 11) {
+                return 0;
+            }
+            return month;
+        },
+        getUTCDate: function getUTCDate() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var year = originalGetUTCFullYear(this);
+            var month = originalGetUTCMonth(this);
+            var date = originalGetUTCDate(this);
+            if (year < 0 && month > 11) {
+                if (month === 12) {
+                    return date;
+                }
+                var days = daysInMonth(0, year + 1);
+                return (days - date) + 1;
+            }
+            return date;
+        }
+    }, hasNegativeMonthYearBug);
+
+    defineProperties(Date.prototype, {
+        toUTCString: function toUTCString() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var day = originalGetUTCDay(this);
+            var date = originalGetUTCDate(this);
+            var month = originalGetUTCMonth(this);
+            var year = originalGetUTCFullYear(this);
+            var hour = originalGetUTCHours(this);
+            var minute = originalGetUTCMinutes(this);
+            var second = originalGetUTCSeconds(this);
+            return dayName[day] + ', ' +
+                (date < 10 ? '0' + date : date) + ' ' +
+                monthName[month] + ' ' +
+                year + ' ' +
+                (hour < 10 ? '0' + hour : hour) + ':' +
+                (minute < 10 ? '0' + minute : minute) + ':' +
+                (second < 10 ? '0' + second : second) + ' GMT';
+        }
+    }, hasNegativeMonthYearBug || hasToUTCStringFormatBug);
+
+    // Opera 12 has `,`
+    defineProperties(Date.prototype, {
+        toDateString: function toDateString() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var day = this.getDay();
+            var date = this.getDate();
+            var month = this.getMonth();
+            var year = this.getFullYear();
+            return dayName[day] + ' ' +
+                monthName[month] + ' ' +
+                (date < 10 ? '0' + date : date) + ' ' +
+                year;
+        }
+    }, hasNegativeMonthYearBug || hasToDateStringFormatBug);
+
+    // can't use defineProperties here because of toString enumeration issue in IE <= 8
+    if (hasNegativeMonthYearBug || hasToStringFormatBug) {
+        Date.prototype.toString = function toString() {
+            if (!this || !(this instanceof Date)) {
+                throw new TypeError('this is not a Date object.');
+            }
+            var day = this.getDay();
+            var date = this.getDate();
+            var month = this.getMonth();
+            var year = this.getFullYear();
+            var hour = this.getHours();
+            var minute = this.getMinutes();
+            var second = this.getSeconds();
+            var timezoneOffset = this.getTimezoneOffset();
+            var hoursOffset = Math.floor(Math.abs(timezoneOffset) / 60);
+            var minutesOffset = Math.floor(Math.abs(timezoneOffset) % 60);
+            return dayName[day] + ' ' +
+                monthName[month] + ' ' +
+                (date < 10 ? '0' + date : date) + ' ' +
+                year + ' ' +
+                (hour < 10 ? '0' + hour : hour) + ':' +
+                (minute < 10 ? '0' + minute : minute) + ':' +
+                (second < 10 ? '0' + second : second) + ' GMT' +
+                (timezoneOffset > 0 ? '-' : '+') +
+                (hoursOffset < 10 ? '0' + hoursOffset : hoursOffset) +
+                (minutesOffset < 10 ? '0' + minutesOffset : minutesOffset);
+        };
+        if (supportsDescriptors) {
+            $Object.defineProperty(Date.prototype, 'toString', {
+                configurable: true,
+                enumerable: false,
+                writable: true
+            });
+        }
+    }
+
+    // ES5 15.9.5.43
+    // http://es5.github.com/#x15.9.5.43
+    // This function returns a String value represent the instance in time
+    // represented by this Date object. The format of the String is the Date Time
+    // string format defined in 15.9.1.15. All fields are present in the String.
+    // The time zone is always UTC, denoted by the suffix Z. If the time value of
+    // this object is not a finite Number a RangeError exception is thrown.
+    var negativeDate = -62198755200000;
+    var negativeYearString = '-000001';
+    var hasNegativeDateBug = Date.prototype.toISOString && new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1;
+    var hasSafari51DateBug = Date.prototype.toISOString && new Date(-1).toISOString() !== '1969-12-31T23:59:59.999Z';
+
+    var getTime = call.bind(Date.prototype.getTime);
+
+    defineProperties(Date.prototype, {
+        toISOString: function toISOString() {
+            if (!isFinite(this) || !isFinite(getTime(this))) {
+                // Adope Photoshop requires the second check.
+                throw new RangeError('Date.prototype.toISOString called on non-finite value.');
+            }
+
+            var year = originalGetUTCFullYear(this);
+
+            var month = originalGetUTCMonth(this);
+            // see https://github.com/es-shims/es5-shim/issues/111
+            year += Math.floor(month / 12);
+            month = (month % 12 + 12) % 12;
+
+            // the date time string format is specified in 15.9.1.15.
+            var result = [month + 1, originalGetUTCDate(this), originalGetUTCHours(this), originalGetUTCMinutes(this), originalGetUTCSeconds(this)];
+            year = (
+                (year < 0 ? '-' : (year > 9999 ? '+' : '')) +
+                strSlice('00000' + Math.abs(year), (0 <= year && year <= 9999) ? -4 : -6)
+            );
+
+            for (var i = 0; i < result.length; ++i) {
+                // pad months, days, hours, minutes, and seconds to have two digits.
+                result[i] = strSlice('00' + result[i], -2);
+            }
+            // pad milliseconds to have three digits.
+            return (
+                year + '-' + arraySlice(result, 0, 2).join('-') +
+                'T' + arraySlice(result, 2).join(':') + '.' +
+                strSlice('000' + originalGetUTCMilliseconds(this), -3) + 'Z'
+            );
+        }
+    }, hasNegativeDateBug || hasSafari51DateBug);
+
+    // ES5 15.9.5.44
+    // http://es5.github.com/#x15.9.5.44
+    // This function provides a String representation of a Date object for use by
+    // JSON.stringify (15.12.3).
+    var dateToJSONIsSupported = (function () {
+        try {
+            return Date.prototype.toJSON &&
+                new Date(NaN).toJSON() === null &&
+                new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 &&
+                Date.prototype.toJSON.call({ // generic
+                    toISOString: function () { return true; }
+                });
+        } catch (e) {
+            return false;
+        }
+    }());
+    if (!dateToJSONIsSupported) {
+        Date.prototype.toJSON = function toJSON(key) {
+            // When the toJSON method is called with argument key, the following
+            // steps are taken:
+
+            // 1.  Let O be the result of calling ToObject, giving it the this
+            // value as its argument.
+            // 2. Let tv be ES.ToPrimitive(O, hint Number).
+            var O = $Object(this);
+            var tv = ES.ToPrimitive(O);
+            // 3. If tv is a Number and is not finite, return null.
+            if (typeof tv === 'number' && !isFinite(tv)) {
+                return null;
+            }
+            // 4. Let toISO be the result of calling the [[Get]] internal method of
+            // O with argument "toISOString".
+            var toISO = O.toISOString;
+            // 5. If IsCallable(toISO) is false, throw a TypeError exception.
+            if (!isCallable(toISO)) {
+                throw new TypeError('toISOString property is not callable');
+            }
+            // 6. Return the result of calling the [[Call]] internal method of
+            //  toISO with O as the this value and an empty argument list.
+            return toISO.call(O);
+
+            // NOTE 1 The argument is ignored.
+
+            // NOTE 2 The toJSON function is intentionally generic; it does not
+            // require that its this value be a Date object. Therefore, it can be
+            // transferred to other kinds of objects for use as a method. However,
+            // it does require that any such object have a toISOString method. An
+            // object is free to use the argument key to filter its
+            // stringification.
+        };
+    }
+
+    // ES5 15.9.4.2
+    // http://es5.github.com/#x15.9.4.2
+    // based on work shared by Daniel Friesen (dantman)
+    // http://gist.github.com/303249
+    var supportsExtendedYears = Date.parse('+033658-09-27T01:46:40.000Z') === 1e15;
+    var acceptsInvalidDates = !isNaN(Date.parse('2012-04-04T24:00:00.500Z')) || !isNaN(Date.parse('2012-11-31T23:59:59.000Z')) || !isNaN(Date.parse('2012-12-31T23:59:60.000Z'));
+    var doesNotParseY2KNewYear = isNaN(Date.parse('2000-01-01T00:00:00.000Z'));
+    if (doesNotParseY2KNewYear || acceptsInvalidDates || !supportsExtendedYears) {
+        // XXX global assignment won't work in embeddings that use
+        // an alternate object for the context.
+        /* global Date: true */
+        /* eslint-disable no-undef */
+        var maxSafeUnsigned32Bit = Math.pow(2, 31) - 1;
+        var hasSafariSignedIntBug = isActualNaN(new Date(1970, 0, 1, 0, 0, 0, maxSafeUnsigned32Bit + 1).getTime());
+        /* eslint-disable no-implicit-globals */
+        Date = (function (NativeDate) {
+        /* eslint-enable no-implicit-globals */
+        /* eslint-enable no-undef */
+            // Date.length === 7
+            var DateShim = function Date(Y, M, D, h, m, s, ms) {
+                var length = arguments.length;
+                var date;
+                if (this instanceof NativeDate) {
+                    var seconds = s;
+                    var millis = ms;
+                    if (hasSafariSignedIntBug && length >= 7 && ms > maxSafeUnsigned32Bit) {
+                        // work around a Safari 8/9 bug where it treats the seconds as signed
+                        var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit;
+                        var sToShift = Math.floor(msToShift / 1e3);
+                        seconds += sToShift;
+                        millis -= sToShift * 1e3;
+                    }
+                    date = length === 1 && $String(Y) === Y ? // isString(Y)
+                        // We explicitly pass it through parse:
+                        new NativeDate(DateShim.parse(Y)) :
+                        // We have to manually make calls depending on argument
+                        // length here
+                        length >= 7 ? new NativeDate(Y, M, D, h, m, seconds, millis) :
+                        length >= 6 ? new NativeDate(Y, M, D, h, m, seconds) :
+                        length >= 5 ? new NativeDate(Y, M, D, h, m) :
+                        length >= 4 ? new NativeDate(Y, M, D, h) :
+                        length >= 3 ? new NativeDate(Y, M, D) :
+                        length >= 2 ? new NativeDate(Y, M) :
+                        length >= 1 ? new NativeDate(Y instanceof NativeDate ? +Y : Y) :
+                                      new NativeDate();
+                } else {
+                    date = NativeDate.apply(this, arguments);
+                }
+                if (!isPrimitive(date)) {
+                    // Prevent mixups with unfixed Date object
+                    defineProperties(date, { constructor: DateShim }, true);
+                }
+                return date;
+            };
+
+            // 15.9.1.15 Date Time String Format.
+            var isoDateExpression = new RegExp('^' +
+                '(\\d{4}|[+-]\\d{6})' + // four-digit year capture or sign +
+                                          // 6-digit extended year
+                '(?:-(\\d{2})' + // optional month capture
+                '(?:-(\\d{2})' + // optional day capture
+                '(?:' + // capture hours:minutes:seconds.milliseconds
+                    'T(\\d{2})' + // hours capture
+                    ':(\\d{2})' + // minutes capture
+                    '(?:' + // optional :seconds.milliseconds
+                        ':(\\d{2})' + // seconds capture
+                        '(?:(\\.\\d{1,}))?' + // milliseconds capture
+                    ')?' +
+                '(' + // capture UTC offset component
+                    'Z|' + // UTC capture
+                    '(?:' + // offset specifier +/-hours:minutes
+                        '([-+])' + // sign capture
+                        '(\\d{2})' + // hours offset capture
+                        ':(\\d{2})' + // minutes offset capture
+                    ')' +
+                ')?)?)?)?' +
+            '$');
+
+            var months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365];
+
+            var dayFromMonth = function dayFromMonth(year, month) {
+                var t = month > 1 ? 1 : 0;
+                return (
+                    months[month] +
+                    Math.floor((year - 1969 + t) / 4) -
+                    Math.floor((year - 1901 + t) / 100) +
+                    Math.floor((year - 1601 + t) / 400) +
+                    365 * (year - 1970)
+                );
+            };
+
+            var toUTC = function toUTC(t) {
+                var s = 0;
+                var ms = t;
+                if (hasSafariSignedIntBug && ms > maxSafeUnsigned32Bit) {
+                    // work around a Safari 8/9 bug where it treats the seconds as signed
+                    var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit;
+                    var sToShift = Math.floor(msToShift / 1e3);
+                    s += sToShift;
+                    ms -= sToShift * 1e3;
+                }
+                return $Number(new NativeDate(1970, 0, 1, 0, 0, s, ms));
+            };
+
+            // Copy any custom methods a 3rd party library may have added
+            for (var key in NativeDate) {
+                if (owns(NativeDate, key)) {
+                    DateShim[key] = NativeDate[key];
+                }
+            }
+
+            // Copy "native" methods explicitly; they may be non-enumerable
+            defineProperties(DateShim, {
+                now: NativeDate.now,
+                UTC: NativeDate.UTC
+            }, true);
+            DateShim.prototype = NativeDate.prototype;
+            defineProperties(DateShim.prototype, {
+                constructor: DateShim
+            }, true);
+
+            // Upgrade Date.parse to handle simplified ISO 8601 strings
+            var parseShim = function parse(string) {
+                var match = isoDateExpression.exec(string);
+                if (match) {
+                    // parse months, days, hours, minutes, seconds, and milliseconds
+                    // provide default values if necessary
+                    // parse the UTC offset component
+                    var year = $Number(match[1]),
+                        month = $Number(match[2] || 1) - 1,
+                        day = $Number(match[3] || 1) - 1,
+                        hour = $Number(match[4] || 0),
+                        minute = $Number(match[5] || 0),
+                        second = $Number(match[6] || 0),
+                        millisecond = Math.floor($Number(match[7] || 0) * 1000),
+                        // When time zone is missed, local offset should be used
+                        // (ES 5.1 bug)
+                        // see https://bugs.ecmascript.org/show_bug.cgi?id=112
+                        isLocalTime = Boolean(match[4] && !match[8]),
+                        signOffset = match[9] === '-' ? 1 : -1,
+                        hourOffset = $Number(match[10] || 0),
+                        minuteOffset = $Number(match[11] || 0),
+                        result;
+                    var hasMinutesOrSecondsOrMilliseconds = minute > 0 || second > 0 || millisecond > 0;
+                    if (
+                        hour < (hasMinutesOrSecondsOrMilliseconds ? 24 : 25) &&
+                        minute < 60 && second < 60 && millisecond < 1000 &&
+                        month > -1 && month < 12 && hourOffset < 24 &&
+                        minuteOffset < 60 && // detect invalid offsets
+                        day > -1 &&
+                        day < (dayFromMonth(year, month + 1) - dayFromMonth(year, month))
+                    ) {
+                        result = (
+                            (dayFromMonth(year, month) + day) * 24 +
+                            hour +
+                            hourOffset * signOffset
+                        ) * 60;
+                        result = (
+                            (result + minute + minuteOffset * signOffset) * 60 +
+                            second
+                        ) * 1000 + millisecond;
+                        if (isLocalTime) {
+                            result = toUTC(result);
+                        }
+                        if (-8.64e15 <= result && result <= 8.64e15) {
+                            return result;
+                        }
+                    }
+                    return NaN;
+                }
+                return NativeDate.parse.apply(this, arguments);
+            };
+            defineProperties(DateShim, { parse: parseShim });
+
+            return DateShim;
+        }(Date));
+        /* global Date: false */
+    }
+
+    // ES5 15.9.4.4
+    // http://es5.github.com/#x15.9.4.4
+    if (!Date.now) {
+        Date.now = function now() {
+            return new Date().getTime();
+        };
+    }
+
+    //
+    // Number
+    // ======
+    //
+
+    // ES5.1 15.7.4.5
+    // http://es5.github.com/#x15.7.4.5
+    var hasToFixedBugs = NumberPrototype.toFixed && (
+      (0.00008).toFixed(3) !== '0.000' ||
+      (0.9).toFixed(0) !== '1' ||
+      (1.255).toFixed(2) !== '1.25' ||
+      (1000000000000000128).toFixed(0) !== '1000000000000000128'
+    );
+
+    var toFixedHelpers = {
+        base: 1e7,
+        size: 6,
+        data: [0, 0, 0, 0, 0, 0],
+        multiply: function multiply(n, c) {
+            var i = -1;
+            var c2 = c;
+            while (++i < toFixedHelpers.size) {
+                c2 += n * toFixedHelpers.data[i];
+                toFixedHelpers.data[i] = c2 % toFixedHelpers.base;
+                c2 = Math.floor(c2 / toFixedHelpers.base);
+            }
+        },
+        divide: function divide(n) {
+            var i = toFixedHelpers.size;
+            var c = 0;
+            while (--i >= 0) {
+                c += toFixedHelpers.data[i];
+                toFixedHelpers.data[i] = Math.floor(c / n);
+                c = (c % n) * toFixedHelpers.base;
+            }
+        },
+        numToString: function numToString() {
+            var i = toFixedHelpers.size;
+            var s = '';
+            while (--i >= 0) {
+                if (s !== '' || i === 0 || toFixedHelpers.data[i] !== 0) {
+                    var t = $String(toFixedHelpers.data[i]);
+                    if (s === '') {
+                        s = t;
+                    } else {
+                        s += strSlice('0000000', 0, 7 - t.length) + t;
+                    }
+                }
+            }
+            return s;
+        },
+        pow: function pow(x, n, acc) {
+            return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc)));
+        },
+        log: function log(x) {
+            var n = 0;
+            var x2 = x;
+            while (x2 >= 4096) {
+                n += 12;
+                x2 /= 4096;
+            }
+            while (x2 >= 2) {
+                n += 1;
+                x2 /= 2;
+            }
+            return n;
+        }
+    };
+
+    var toFixedShim = function toFixed(fractionDigits) {
+        var f, x, s, m, e, z, j, k;
+
+        // Test for NaN and round fractionDigits down
+        f = $Number(fractionDigits);
+        f = isActualNaN(f) ? 0 : Math.floor(f);
+
+        if (f < 0 || f > 20) {
+            throw new RangeError('Number.toFixed called with invalid number of decimals');
+        }
+
+        x = $Number(this);
+
+        if (isActualNaN(x)) {
+            return 'NaN';
+        }
+
+        // If it is too big or small, return the string value of the number
+        if (x <= -1e21 || x >= 1e21) {
+            return $String(x);
+        }
+
+        s = '';
+
+        if (x < 0) {
+            s = '-';
+            x = -x;
+        }
+
+        m = '0';
+
+        if (x > 1e-21) {
+            // 1e-21 < x < 1e21
+            // -70 < log2(x) < 70
+            e = toFixedHelpers.log(x * toFixedHelpers.pow(2, 69, 1)) - 69;
+            z = (e < 0 ? x * toFixedHelpers.pow(2, -e, 1) : x / toFixedHelpers.pow(2, e, 1));
+            z *= 0x10000000000000; // Math.pow(2, 52);
+            e = 52 - e;
+
+            // -18 < e < 122
+            // x = z / 2 ^ e
+            if (e > 0) {
+                toFixedHelpers.multiply(0, z);
+                j = f;
+
+                while (j >= 7) {
+                    toFixedHelpers.multiply(1e7, 0);
+                    j -= 7;
+                }
+
+                toFixedHelpers.multiply(toFixedHelpers.pow(10, j, 1), 0);
+                j = e - 1;
+
+                while (j >= 23) {
+                    toFixedHelpers.divide(1 << 23);
+                    j -= 23;
+                }
+
+                toFixedHelpers.divide(1 << j);
+                toFixedHelpers.multiply(1, 1);
+                toFixedHelpers.divide(2);
+                m = toFixedHelpers.numToString();
+            } else {
+                toFixedHelpers.multiply(0, z);
+                toFixedHelpers.multiply(1 << (-e), 0);
+                m = toFixedHelpers.numToString() + strSlice('0.00000000000000000000', 2, 2 + f);
+            }
+        }
+
+        if (f > 0) {
+            k = m.length;
+
+            if (k <= f) {
+                m = s + strSlice('0.0000000000000000000', 0, f - k + 2) + m;
+            } else {
+                m = s + strSlice(m, 0, k - f) + '.' + strSlice(m, k - f);
+            }
+        } else {
+            m = s + m;
+        }
+
+        return m;
+    };
+    defineProperties(NumberPrototype, { toFixed: toFixedShim }, hasToFixedBugs);
+
+    var hasToPrecisionUndefinedBug = (function () {
+        try {
+            return 1.0.toPrecision(undefined) === '1';
+        } catch (e) {
+            return true;
+        }
+    }());
+    var originalToPrecision = NumberPrototype.toPrecision;
+    defineProperties(NumberPrototype, {
+        toPrecision: function toPrecision(precision) {
+            return typeof precision === 'undefined' ? originalToPrecision.call(this) : originalToPrecision.call(this, precision);
+        }
+    }, hasToPrecisionUndefinedBug);
+
+    //
+    // String
+    // ======
+    //
+
+    // ES5 15.5.4.14
+    // http://es5.github.com/#x15.5.4.14
+
+    // [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers]
+    // Many browsers do not split properly with regular expressions or they
+    // do not perform the split correctly under obscure conditions.
+    // See http://blog.stevenlevithan.com/archives/cross-browser-split
+    // I've tested in many browsers and this seems to cover the deviant ones:
+    //    'ab'.split(/(?:ab)*/) should be ["", ""], not [""]
+    //    '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""]
+    //    'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not
+    //       [undefined, "t", undefined, "e", ...]
+    //    ''.split(/.?/) should be [], not [""]
+    //    '.'.split(/()()/) should be ["."], not ["", "", "."]
+
+    if (
+        'ab'.split(/(?:ab)*/).length !== 2 ||
+        '.'.split(/(.?)(.?)/).length !== 4 ||
+        'tesst'.split(/(s)*/)[1] === 't' ||
+        'test'.split(/(?:)/, -1).length !== 4 ||
+        ''.split(/.?/).length ||
+        '.'.split(/()()/).length > 1
+    ) {
+        (function () {
+            var compliantExecNpcg = typeof (/()??/).exec('')[1] === 'undefined'; // NPCG: nonparticipating capturing group
+            var maxSafe32BitInt = Math.pow(2, 32) - 1;
+
+            StringPrototype.split = function (separator, limit) {
+                var string = String(this);
+                if (typeof separator === 'undefined' && limit === 0) {
+                    return [];
+                }
+
+                // If `separator` is not a regex, use native split
+                if (!isRegex(separator)) {
+                    return strSplit(this, separator, limit);
+                }
+
+                var output = [];
+                var flags = (separator.ignoreCase ? 'i' : '') +
+                            (separator.multiline ? 'm' : '') +
+                            (separator.unicode ? 'u' : '') + // in ES6
+                            (separator.sticky ? 'y' : ''), // Firefox 3+ and ES6
+                    lastLastIndex = 0,
+                    // Make `global` and avoid `lastIndex` issues by working with a copy
+                    separator2, match, lastIndex, lastLength;
+                var separatorCopy = new RegExp(separator.source, flags + 'g');
+                if (!compliantExecNpcg) {
+                    // Doesn't need flags gy, but they don't hurt
+                    separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\s)', flags);
+                }
+                /* Values for `limit`, per the spec:
+                 * If undefined: 4294967295 // maxSafe32BitInt
+                 * If 0, Infinity, or NaN: 0
+                 * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
+                 * If negative number: 4294967296 - Math.floor(Math.abs(limit))
+                 * If other: Type-convert, then use the above rules
+                 */
+                var splitLimit = typeof limit === 'undefined' ? maxSafe32BitInt : ES.ToUint32(limit);
+                match = separatorCopy.exec(string);
+                while (match) {
+                    // `separatorCopy.lastIndex` is not reliable cross-browser
+                    lastIndex = match.index + match[0].length;
+                    if (lastIndex > lastLastIndex) {
+                        pushCall(output, strSlice(string, lastLastIndex, match.index));
+                        // Fix browsers whose `exec` methods don't consistently return `undefined` for
+                        // nonparticipating capturing groups
+                        if (!compliantExecNpcg && match.length > 1) {
+                            /* eslint-disable no-loop-func */
+                            match[0].replace(separator2, function () {
+                                for (var i = 1; i < arguments.length - 2; i++) {
+                                    if (typeof arguments[i] === 'undefined') {
+                                        match[i] = void 0;
+                                    }
+                                }
+                            });
+                            /* eslint-enable no-loop-func */
+                        }
+                        if (match.length > 1 && match.index < string.length) {
+                            array_push.apply(output, arraySlice(match, 1));
+                        }
+                        lastLength = match[0].length;
+                        lastLastIndex = lastIndex;
+                        if (output.length >= splitLimit) {
+                            break;
+                        }
+                    }
+                    if (separatorCopy.lastIndex === match.index) {
+                        separatorCopy.lastIndex++; // Avoid an infinite loop
+                    }
+                    match = separatorCopy.exec(string);
+                }
+                if (lastLastIndex === string.length) {
+                    if (lastLength || !separatorCopy.test('')) {
+                        pushCall(output, '');
+                    }
+                } else {
+                    pushCall(output, strSlice(string, lastLastIndex));
+                }
+                return output.length > splitLimit ? arraySlice(output, 0, splitLimit) : output;
+            };
+        }());
+
+    // [bugfix, chrome]
+    // If separator is undefined, then the result array contains just one String,
+    // which is the this value (converted to a String). If limit is not undefined,
+    // then the output array is truncated so that it contains no more than limit
+    // elements.
+    // "0".split(undefined, 0) -> []
+    } else if ('0'.split(void 0, 0).length) {
+        StringPrototype.split = function split(separator, limit) {
+            if (typeof separator === 'undefined' && limit === 0) {
+                return [];
+            }
+            return strSplit(this, separator, limit);
+        };
+    }
+
+    var str_replace = StringPrototype.replace;
+    var replaceReportsGroupsCorrectly = (function () {
+        var groups = [];
+        'x'.replace(/x(.)?/g, function (match, group) {
+            pushCall(groups, group);
+        });
+        return groups.length === 1 && typeof groups[0] === 'undefined';
+    }());
+
+    if (!replaceReportsGroupsCorrectly) {
+        StringPrototype.replace = function replace(searchValue, replaceValue) {
+            var isFn = isCallable(replaceValue);
+            var hasCapturingGroups = isRegex(searchValue) && (/\)[*?]/).test(searchValue.source);
+            if (!isFn || !hasCapturingGroups) {
+                return str_replace.call(this, searchValue, replaceValue);
+            } else {
+                var wrappedReplaceValue = function (match) {
+                    var length = arguments.length;
+                    var originalLastIndex = searchValue.lastIndex;
+                    searchValue.lastIndex = 0;
+                    var args = searchValue.exec(match) || [];
+                    searchValue.lastIndex = originalLastIndex;
+                    pushCall(args, arguments[length - 2], arguments[length - 1]);
+                    return replaceValue.apply(this, args);
+                };
+                return str_replace.call(this, searchValue, wrappedReplaceValue);
+            }
+        };
+    }
+
+    // ECMA-262, 3rd B.2.3
+    // Not an ECMAScript standard, although ECMAScript 3rd Edition has a
+    // non-normative section suggesting uniform semantics and it should be
+    // normalized across all browsers
+    // [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE
+    var string_substr = StringPrototype.substr;
+    var hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b';
+    defineProperties(StringPrototype, {
+        substr: function substr(start, length) {
+            var normalizedStart = start;
+            if (start < 0) {
+                normalizedStart = max(this.length + start, 0);
+            }
+            return string_substr.call(this, normalizedStart, length);
+        }
+    }, hasNegativeSubstrBug);
+
+    // ES5 15.5.4.20
+    // whitespace from: http://es5.github.io/#x15.5.4.20
+    var ws = '\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';
+    var zeroWidth = '\u200b';
+    var wsRegexChars = '[' + ws + ']';
+    var trimBeginRegexp = new RegExp('^' + wsRegexChars + wsRegexChars + '*');
+    var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + '*$');
+    var hasTrimWhitespaceBug = StringPrototype.trim && (ws.trim() || !zeroWidth.trim());
+    defineProperties(StringPrototype, {
+        // http://blog.stevenlevithan.com/archives/faster-trim-javascript
+        // http://perfectionkills.com/whitespace-deviations/
+        trim: function trim() {
+            if (typeof this === 'undefined' || this === null) {
+                throw new TypeError("can't convert " + this + ' to object');
+            }
+            return $String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, '');
+        }
+    }, hasTrimWhitespaceBug);
+    var trim = call.bind(String.prototype.trim);
+
+    var hasLastIndexBug = StringPrototype.lastIndexOf && 'abcあい'.lastIndexOf('あい', 2) !== -1;
+    defineProperties(StringPrototype, {
+        lastIndexOf: function lastIndexOf(searchString) {
+            if (typeof this === 'undefined' || this === null) {
+                throw new TypeError("can't convert " + this + ' to object');
+            }
+            var S = $String(this);
+            var searchStr = $String(searchString);
+            var numPos = arguments.length > 1 ? $Number(arguments[1]) : NaN;
+            var pos = isActualNaN(numPos) ? Infinity : ES.ToInteger(numPos);
+            var start = min(max(pos, 0), S.length);
+            var searchLen = searchStr.length;
+            var k = start + searchLen;
+            while (k > 0) {
+                k = max(0, k - searchLen);
+                var index = strIndexOf(strSlice(S, k, start + searchLen), searchStr);
+                if (index !== -1) {
+                    return k + index;
+                }
+            }
+            return -1;
+        }
+    }, hasLastIndexBug);
+
+    var originalLastIndexOf = StringPrototype.lastIndexOf;
+    defineProperties(StringPrototype, {
+        lastIndexOf: function lastIndexOf(searchString) {
+            return originalLastIndexOf.apply(this, arguments);
+        }
+    }, StringPrototype.lastIndexOf.length !== 1);
+
+    // ES-5 15.1.2.2
+    /* eslint-disable radix */
+    if (parseInt(ws + '08') !== 8 || parseInt(ws + '0x16') !== 22) {
+    /* eslint-enable radix */
+        /* global parseInt: true */
+        parseInt = (function (origParseInt) {
+            var hexRegex = /^[\-+]?0[xX]/;
+            return function parseInt(str, radix) {
+                var string = trim(String(str));
+                var defaultedRadix = $Number(radix) || (hexRegex.test(string) ? 16 : 10);
+                return origParseInt(string, defaultedRadix);
+            };
+        }(parseInt));
+    }
+
+    // https://es5.github.io/#x15.1.2.3
+    if (1 / parseFloat('-0') !== -Infinity) {
+        /* global parseFloat: true */
+        parseFloat = (function (origParseFloat) {
+            return function parseFloat(string) {
+                var inputString = trim(String(string));
+                var result = origParseFloat(inputString);
+                return result === 0 && strSlice(inputString, 0, 1) === '-' ? -0 : result;
+            };
+        }(parseFloat));
+    }
+
+    if (String(new RangeError('test')) !== 'RangeError: test') {
+        var errorToStringShim = function toString() {
+            if (typeof this === 'undefined' || this === null) {
+                throw new TypeError("can't convert " + this + ' to object');
+            }
+            var name = this.name;
+            if (typeof name === 'undefined') {
+                name = 'Error';
+            } else if (typeof name !== 'string') {
+                name = $String(name);
+            }
+            var msg = this.message;
+            if (typeof msg === 'undefined') {
+                msg = '';
+            } else if (typeof msg !== 'string') {
+                msg = $String(msg);
+            }
+            if (!name) {
+                return msg;
+            }
+            if (!msg) {
+                return name;
+            }
+            return name + ': ' + msg;
+        };
+        // can't use defineProperties here because of toString enumeration issue in IE <= 8
+        Error.prototype.toString = errorToStringShim;
+    }
+
+    if (supportsDescriptors) {
+        var ensureNonEnumerable = function (obj, prop) {
+            if (isEnum(obj, prop)) {
+                var desc = Object.getOwnPropertyDescriptor(obj, prop);
+                if (desc.configurable) {
+                    desc.enumerable = false;
+                    Object.defineProperty(obj, prop, desc);
+                }
+            }
+        };
+        ensureNonEnumerable(Error.prototype, 'message');
+        if (Error.prototype.message !== '') {
+            Error.prototype.message = '';
+        }
+        ensureNonEnumerable(Error.prototype, 'name');
+    }
+
+    if (String(/a/mig) !== '/a/gim') {
+        var regexToString = function toString() {
+            var str = '/' + this.source + '/';
+            if (this.global) {
+                str += 'g';
+            }
+            if (this.ignoreCase) {
+                str += 'i';
+            }
+            if (this.multiline) {
+                str += 'm';
+            }
+            return str;
+        };
+        // can't use defineProperties here because of toString enumeration issue in IE <= 8
+        RegExp.prototype.toString = regexToString;
+    }
+}));