window.ADN_CONFIG = window.ADN_CONFIG || {"app_root_url":"https://adn-comments.s3.amazonaws.com","client_id":"q6BSdP5DctemahG9EDZVAmCv2x2dbjZJ","redirect_uri":"https://adn-comments.s3.amazonaws.com/auth.html","valid_config_keys":["comments_root","comments_url","default_at_reply","comments_origin","body_font_color","link_font_color","accent_color","font_family"]};
/**
 * @license almond 0.2.9 Copyright (c) 2011-2014, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/almond for details
 */
//Going sloppy to avoid 'use strict' string cost, but strict practices should
//be followed.
/*jslint sloppy: true */
/*global setTimeout: false */

var requirejs, require, define;
(function (undef) {
    var main, req, makeMap, handlers,
        defined = {},
        waiting = {},
        config = {},
        defining = {},
        hasOwn = Object.prototype.hasOwnProperty,
        aps = [].slice,
        jsSuffixRegExp = /\.js$/;

    function hasProp(obj, prop) {
        return hasOwn.call(obj, prop);
    }

    /**
     * Given a relative module name, like ./something, normalize it to
     * a real name that can be mapped to a path.
     * @param {String} name the relative name
     * @param {String} baseName a real name that the name arg is relative
     * to.
     * @returns {String} normalized name
     */
    function normalize(name, baseName) {
        var nameParts, nameSegment, mapValue, foundMap, lastIndex,
            foundI, foundStarMap, starI, i, j, part,
            baseParts = baseName && baseName.split("/"),
            map = config.map,
            starMap = (map && map['*']) || {};

        //Adjust any relative paths.
        if (name && name.charAt(0) === ".") {
            //If have a base name, try to normalize against it,
            //otherwise, assume it is a top-level require that will
            //be relative to baseUrl in the end.
            if (baseName) {
                //Convert baseName to array, and lop off the last part,
                //so that . matches that "directory" and not name of the baseName's
                //module. For instance, baseName of "one/two/three", maps to
                //"one/two/three.js", but we want the directory, "one/two" for
                //this normalization.
                baseParts = baseParts.slice(0, baseParts.length - 1);
                name = name.split('/');
                lastIndex = name.length - 1;

                // Node .js allowance:
                if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {
                    name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');
                }

                name = baseParts.concat(name);

                //start trimDots
                for (i = 0; i < name.length; i += 1) {
                    part = name[i];
                    if (part === ".") {
                        name.splice(i, 1);
                        i -= 1;
                    } else if (part === "..") {
                        if (i === 1 && (name[2] === '..' || name[0] === '..')) {
                            //End of the line. Keep at least one non-dot
                            //path segment at the front so it can be mapped
                            //correctly to disk. Otherwise, there is likely
                            //no path mapping for a path starting with '..'.
                            //This can still fail, but catches the most reasonable
                            //uses of ..
                            break;
                        } else if (i > 0) {
                            name.splice(i - 1, 2);
                            i -= 2;
                        }
                    }
                }
                //end trimDots

                name = name.join("/");
            } else if (name.indexOf('./') === 0) {
                // No baseName, so this is ID is resolved relative
                // to baseUrl, pull off the leading dot.
                name = name.substring(2);
            }
        }

        //Apply map config if available.
        if ((baseParts || starMap) && map) {
            nameParts = name.split('/');

            for (i = nameParts.length; i > 0; i -= 1) {
                nameSegment = nameParts.slice(0, i).join("/");

                if (baseParts) {
                    //Find the longest baseName segment match in the config.
                    //So, do joins on the biggest to smallest lengths of baseParts.
                    for (j = baseParts.length; j > 0; j -= 1) {
                        mapValue = map[baseParts.slice(0, j).join('/')];

                        //baseName segment has  config, find if it has one for
                        //this name.
                        if (mapValue) {
                            mapValue = mapValue[nameSegment];
                            if (mapValue) {
                                //Match, update name to the new value.
                                foundMap = mapValue;
                                foundI = i;
                                break;
                            }
                        }
                    }
                }

                if (foundMap) {
                    break;
                }

                //Check for a star map match, but just hold on to it,
                //if there is a shorter segment match later in a matching
                //config, then favor over this star map.
                if (!foundStarMap && starMap && starMap[nameSegment]) {
                    foundStarMap = starMap[nameSegment];
                    starI = i;
                }
            }

            if (!foundMap && foundStarMap) {
                foundMap = foundStarMap;
                foundI = starI;
            }

            if (foundMap) {
                nameParts.splice(0, foundI, foundMap);
                name = nameParts.join('/');
            }
        }

        return name;
    }

    function makeRequire(relName, forceSync) {
        return function () {
            //A version of a require function that passes a moduleName
            //value for items that may need to
            //look up paths relative to the moduleName
            return req.apply(undef, aps.call(arguments, 0).concat([relName, forceSync]));
        };
    }

    function makeNormalize(relName) {
        return function (name) {
            return normalize(name, relName);
        };
    }

    function makeLoad(depName) {
        return function (value) {
            defined[depName] = value;
        };
    }

    function callDep(name) {
        if (hasProp(waiting, name)) {
            var args = waiting[name];
            delete waiting[name];
            defining[name] = true;
            main.apply(undef, args);
        }

        if (!hasProp(defined, name) && !hasProp(defining, name)) {
            throw new Error('No ' + name);
        }
        return defined[name];
    }

    //Turns a plugin!resource to [plugin, resource]
    //with the plugin being undefined if the name
    //did not have a plugin prefix.
    function splitPrefix(name) {
        var prefix,
            index = name ? name.indexOf('!') : -1;
        if (index > -1) {
            prefix = name.substring(0, index);
            name = name.substring(index + 1, name.length);
        }
        return [prefix, name];
    }

    /**
     * Makes a name map, normalizing the name, and using a plugin
     * for normalization if necessary. Grabs a ref to plugin
     * too, as an optimization.
     */
    makeMap = function (name, relName) {
        var plugin,
            parts = splitPrefix(name),
            prefix = parts[0];

        name = parts[1];

        if (prefix) {
            prefix = normalize(prefix, relName);
            plugin = callDep(prefix);
        }

        //Normalize according
        if (prefix) {
            if (plugin && plugin.normalize) {
                name = plugin.normalize(name, makeNormalize(relName));
            } else {
                name = normalize(name, relName);
            }
        } else {
            name = normalize(name, relName);
            parts = splitPrefix(name);
            prefix = parts[0];
            name = parts[1];
            if (prefix) {
                plugin = callDep(prefix);
            }
        }

        //Using ridiculous property names for space reasons
        return {
            f: prefix ? prefix + '!' + name : name, //fullName
            n: name,
            pr: prefix,
            p: plugin
        };
    };

    function makeConfig(name) {
        return function () {
            return (config && config.config && config.config[name]) || {};
        };
    }

    handlers = {
        require: function (name) {
            return makeRequire(name);
        },
        exports: function (name) {
            var e = defined[name];
            if (typeof e !== 'undefined') {
                return e;
            } else {
                return (defined[name] = {});
            }
        },
        module: function (name) {
            return {
                id: name,
                uri: '',
                exports: defined[name],
                config: makeConfig(name)
            };
        }
    };

    main = function (name, deps, callback, relName) {
        var cjsModule, depName, ret, map, i,
            args = [],
            callbackType = typeof callback,
            usingExports;

        //Use name if no relName
        relName = relName || name;

        //Call the callback to define the module, if necessary.
        if (callbackType === 'undefined' || callbackType === 'function') {
            //Pull out the defined dependencies and pass the ordered
            //values to the callback.
            //Default to [require, exports, module] if no deps
            deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps;
            for (i = 0; i < deps.length; i += 1) {
                map = makeMap(deps[i], relName);
                depName = map.f;

                //Fast path CommonJS standard dependencies.
                if (depName === "require") {
                    args[i] = handlers.require(name);
                } else if (depName === "exports") {
                    //CommonJS module spec 1.1
                    args[i] = handlers.exports(name);
                    usingExports = true;
                } else if (depName === "module") {
                    //CommonJS module spec 1.1
                    cjsModule = args[i] = handlers.module(name);
                } else if (hasProp(defined, depName) ||
                           hasProp(waiting, depName) ||
                           hasProp(defining, depName)) {
                    args[i] = callDep(depName);
                } else if (map.p) {
                    map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {});
                    args[i] = defined[depName];
                } else {
                    throw new Error(name + ' missing ' + depName);
                }
            }

            ret = callback ? callback.apply(defined[name], args) : undefined;

            if (name) {
                //If setting exports via "module" is in play,
                //favor that over return value and exports. After that,
                //favor a non-undefined return value over exports use.
                if (cjsModule && cjsModule.exports !== undef &&
                        cjsModule.exports !== defined[name]) {
                    defined[name] = cjsModule.exports;
                } else if (ret !== undef || !usingExports) {
                    //Use the return value from the function.
                    defined[name] = ret;
                }
            }
        } else if (name) {
            //May just be an object definition for the module. Only
            //worry about defining if have a module name.
            defined[name] = callback;
        }
    };

    requirejs = require = req = function (deps, callback, relName, forceSync, alt) {
        if (typeof deps === "string") {
            if (handlers[deps]) {
                //callback in this case is really relName
                return handlers[deps](callback);
            }
            //Just return the module wanted. In this scenario, the
            //deps arg is the module name, and second arg (if passed)
            //is just the relName.
            //Normalize module name, if it contains . or ..
            return callDep(makeMap(deps, callback).f);
        } else if (!deps.splice) {
            //deps is a config object, not an array.
            config = deps;
            if (config.deps) {
                req(config.deps, config.callback);
            }
            if (!callback) {
                return;
            }

            if (callback.splice) {
                //callback is an array, which means it is a dependency list.
                //Adjust args if there are dependencies
                deps = callback;
                callback = relName;
                relName = null;
            } else {
                deps = undef;
            }
        }

        //Support require(['a'])
        callback = callback || function () {};

        //If relName is a function, it is an errback handler,
        //so remove it.
        if (typeof relName === 'function') {
            relName = forceSync;
            forceSync = alt;
        }

        //Simulate async callback;
        if (forceSync) {
            main(undef, deps, callback, relName);
        } else {
            //Using a non-zero value because of concern for what old browsers
            //do, and latest browsers "upgrade" to 4 if lower value is used:
            //http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout:
            //If want a value immediately, use require('id') instead -- something
            //that works in almond on the global level, but not guaranteed and
            //unlikely to work in other AMD implementations.
            setTimeout(function () {
                main(undef, deps, callback, relName);
            }, 4);
        }

        return req;
    };

    /**
     * Just drops the config on the floor, but returns req in case
     * the config return value is used.
     */
    req.config = function (cfg) {
        return req(cfg);
    };

    /**
     * Expose module registry for debugging and tooling
     */
    requirejs._defined = defined;

    define = function (name, deps, callback) {

        //This module may not have dependencies
        if (!deps.splice) {
            //deps is not an array, so probably means
            //an object literal or factory function for
            //the value. Adjust args.
            callback = deps;
            deps = [];
        }

        if (!hasProp(defined, name) && !hasProp(waiting, name)) {
            waiting[name] = [name, deps, callback];
        }
    };

    define.amd = {
        jQuery: true
    };
}());

/*!
  * domready (c) Dustin Diaz 2012 - License MIT
  */
!function (name, definition) {
  if (typeof module != 'undefined') module.exports = definition()
  else if (typeof define == 'function' && typeof define.amd == 'object') define(name, definition)
  else this[name] = definition()
}('domready', function (ready) {

  var fns = [], fn, f = false
    , doc = document
    , testEl = doc.documentElement
    , hack = testEl.doScroll
    , domContentLoaded = 'DOMContentLoaded'
    , addEventListener = 'addEventListener'
    , onreadystatechange = 'onreadystatechange'
    , readyState = 'readyState'
    , loadedRgx = hack ? /^loaded|^c/ : /^loaded|c/
    , loaded = loadedRgx.test(doc[readyState])

  function flush(f) {
    loaded = 1
    while (f = fns.shift()) f()
  }

  doc[addEventListener] && doc[addEventListener](domContentLoaded, fn = function () {
    doc.removeEventListener(domContentLoaded, fn, f)
    flush()
  }, f)


  hack && doc.attachEvent(onreadystatechange, fn = function () {
    if (/^c/.test(doc[readyState])) {
      doc.detachEvent(onreadystatechange, fn)
      flush()
    }
  })

  return (ready = hack ?
    function (fn) {
      self != top ?
        loaded ? fn() : fns.push(fn) :
        function () {
          try {
            testEl.doScroll('left')
          } catch (e) {
            return setTimeout(function() { ready(fn) }, 50)
          }
          fn()
        }()
    } :
    function (fn) {
      loaded ? fn() : fns.push(fn)
    })
})

/**
 * @license
 * Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/>
 * Build: `lodash include="each,extend" exports="amd"`
 * Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <http://lodash.com/license>
 */
;(function() {

  /** Used internally to indicate various things */
  var indicatorObject = {};

  /** Used to detected named functions */
  var reFuncName = /^\s*function[ \n\r\t]+\w/;

  /** Used to detect functions containing a `this` reference */
  var reThis = /\bthis\b/;

  /** Used to fix the JScript [[DontEnum]] bug */
  var shadowedProps = [
    'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable',
    'toLocaleString', 'toString', 'valueOf'
  ];

  /** `Object#toString` result shortcuts */
  var argsClass = '[object Arguments]',
      arrayClass = '[object Array]',
      boolClass = '[object Boolean]',
      dateClass = '[object Date]',
      errorClass = '[object Error]',
      funcClass = '[object Function]',
      numberClass = '[object Number]',
      objectClass = '[object Object]',
      regexpClass = '[object RegExp]',
      stringClass = '[object String]';

  /** Used as the property descriptor for `__bindData__` */
  var descriptor = {
    'configurable': false,
    'enumerable': false,
    'value': null,
    'writable': false
  };

  /** Used as the data object for `iteratorTemplate` */
  var iteratorData = {
    'args': '',
    'array': null,
    'bottom': '',
    'firstArg': '',
    'init': '',
    'keys': null,
    'loop': '',
    'shadowedProps': null,
    'support': null,
    'top': '',
    'useHas': false
  };

  /** Used to determine if values are of the language type Object */
  var objectTypes = {
    'boolean': false,
    'function': true,
    'object': true,
    'number': false,
    'string': false,
    'undefined': false
  };

  /** Used as a reference to the global object */
  var root = (objectTypes[typeof window] && window) || this;

  /** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
  var freeGlobal = objectTypes[typeof global] && global;
  if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
    root = freeGlobal;
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Slices the `collection` from the `start` index up to, but not including,
   * the `end` index.
   *
   * Note: This function is used instead of `Array#slice` to support node lists
   * in IE < 9 and to ensure dense arrays are returned.
   *
   * @private
   * @param {Array|Object|string} collection The collection to slice.
   * @param {number} start The start index.
   * @param {number} end The end index.
   * @returns {Array} Returns the new array.
   */
  function slice(array, start, end) {
    start || (start = 0);
    if (typeof end == 'undefined') {
      end = array ? array.length : 0;
    }
    var index = -1,
        length = end - start || 0,
        result = Array(length < 0 ? 0 : length);

    while (++index < length) {
      result[index] = array[start + index];
    }
    return result;
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Used for `Array` method references.
   *
   * Normally `Array.prototype` would suffice, however, using an array literal
   * avoids issues in Narwhal.
   */
  var arrayRef = [];

  /** Used for native method references */
  var errorProto = Error.prototype,
      objectProto = Object.prototype,
      stringProto = String.prototype;

  /** Used to resolve the internal [[Class]] of values */
  var toString = objectProto.toString;

  /** Used to detect if a method is native */
  var reNative = RegExp('^' +
    String(toString)
      .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
      .replace(/toString| for [^\]]+/g, '.*?') + '$'
  );

  /** Native method shortcuts */
  var fnToString = Function.prototype.toString,
      hasOwnProperty = objectProto.hasOwnProperty,
      push = arrayRef.push,
      propertyIsEnumerable = objectProto.propertyIsEnumerable,
      unshift = arrayRef.unshift;

  /** Used to set meta data on functions */
  var defineProperty = (function() {
    // IE 8 only accepts DOM elements
    try {
      var o = {},
          func = isNative(func = Object.defineProperty) && func,
          result = func(o, o, o) && func;
    } catch(e) { }
    return result;
  }());

  /* Native method shortcuts for methods with the same name as other `lodash` methods */
  var nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
      nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
      nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys;

  /** Used to avoid iterating non-enumerable properties in IE < 9 */
  var nonEnumProps = {};
  nonEnumProps[arrayClass] = nonEnumProps[dateClass] = nonEnumProps[numberClass] = { 'constructor': true, 'toLocaleString': true, 'toString': true, 'valueOf': true };
  nonEnumProps[boolClass] = nonEnumProps[stringClass] = { 'constructor': true, 'toString': true, 'valueOf': true };
  nonEnumProps[errorClass] = nonEnumProps[funcClass] = nonEnumProps[regexpClass] = { 'constructor': true, 'toString': true };
  nonEnumProps[objectClass] = { 'constructor': true };

  (function() {
    var length = shadowedProps.length;
    while (length--) {
      var key = shadowedProps[length];
      for (var className in nonEnumProps) {
        if (hasOwnProperty.call(nonEnumProps, className) && !hasOwnProperty.call(nonEnumProps[className], key)) {
          nonEnumProps[className][key] = false;
        }
      }
    }
  }());

  /*--------------------------------------------------------------------------*/

  /**
   * Creates a `lodash` object which wraps the given value to enable intuitive
   * method chaining.
   *
   * In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
   * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
   * and `unshift`
   *
   * Chaining is supported in custom builds as long as the `value` method is
   * implicitly or explicitly included in the build.
   *
   * The chainable wrapper functions are:
   * `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
   * `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
   * `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
   * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
   * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
   * `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
   * `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
   * `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
   * `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
   * `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
   * and `zip`
   *
   * The non-chainable wrapper functions are:
   * `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
   * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
   * `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
   * `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
   * `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
   * `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
   * `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
   * `template`, `unescape`, `uniqueId`, and `value`
   *
   * The wrapper functions `first` and `last` return wrapped values when `n` is
   * provided, otherwise they return unwrapped values.
   *
   * Explicit chaining can be enabled by using the `_.chain` method.
   *
   * @name _
   * @constructor
   * @category Chaining
   * @param {*} value The value to wrap in a `lodash` instance.
   * @returns {Object} Returns a `lodash` instance.
   * @example
   *
   * var wrapped = _([1, 2, 3]);
   *
   * // returns an unwrapped value
   * wrapped.reduce(function(sum, num) {
   *   return sum + num;
   * });
   * // => 6
   *
   * // returns a wrapped value
   * var squares = wrapped.map(function(num) {
   *   return num * num;
   * });
   *
   * _.isArray(squares);
   * // => false
   *
   * _.isArray(squares.value());
   * // => true
   */
  function lodash() {
    // no operation performed
  }

  /**
   * An object used to flag environments features.
   *
   * @static
   * @memberOf _
   * @type Object
   */
  var support = lodash.support = {};

  (function() {
    var ctor = function() { this.x = 1; },
        object = { '0': 1, 'length': 1 },
        props = [];

    ctor.prototype = { 'valueOf': 1, 'y': 1 };
    for (var key in new ctor) { props.push(key); }
    for (key in arguments) { }

    /**
     * Detect if an `arguments` object's [[Class]] is resolvable (all but Firefox < 4, IE < 9).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.argsClass = toString.call(arguments) == argsClass;

    /**
     * Detect if `arguments` objects are `Object` objects (all but Narwhal and Opera < 10.5).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.argsObject = arguments.constructor == Object && !(arguments instanceof Array);

    /**
     * Detect if `name` or `message` properties of `Error.prototype` are
     * enumerable by default. (IE < 9, Safari < 5.1)
     *
     * @memberOf _.support
     * @type boolean
     */
    support.enumErrorProps = propertyIsEnumerable.call(errorProto, 'message') || propertyIsEnumerable.call(errorProto, 'name');

    /**
     * Detect if `prototype` properties are enumerable by default.
     *
     * Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1
     * (if the prototype or a property on the prototype has been set)
     * incorrectly sets a function's `prototype` property [[Enumerable]]
     * value to `true`.
     *
     * @memberOf _.support
     * @type boolean
     */
    support.enumPrototypes = propertyIsEnumerable.call(ctor, 'prototype');

    /**
     * Detect if functions can be decompiled by `Function#toString`
     * (all but PS3 and older Opera mobile browsers & avoided in Windows 8 apps).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.funcDecomp = !isNative(root.WinRTError) && reThis.test(function() { return this; });

    /**
     * Detect if `Function#name` is supported (all but IE).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.funcNames = typeof Function.name == 'string';

    /**
     * Detect if `arguments` object indexes are non-enumerable
     * (Firefox < 4, IE < 9, PhantomJS, Safari < 5.1).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.nonEnumArgs = key != 0;

    /**
     * Detect if properties shadowing those on `Object.prototype` are non-enumerable.
     *
     * In IE < 9 an objects own properties, shadowing non-enumerable ones, are
     * made non-enumerable as well (a.k.a the JScript [[DontEnum]] bug).
     *
     * @memberOf _.support
     * @type boolean
     */
    support.nonEnumShadows = !/valueOf/.test(props);

    /**
     * Detect if `Array#shift` and `Array#splice` augment array-like objects correctly.
     *
     * Firefox < 10, IE compatibility mode, and IE < 9 have buggy Array `shift()`
     * and `splice()` functions that fail to remove the last element, `value[0]`,
     * of array-like objects even though the `length` property is set to `0`.
     * The `shift()` method is buggy in IE 8 compatibility mode, while `splice()`
     * is buggy regardless of mode in IE < 9 and buggy in compatibility mode in IE 9.
     *
     * @memberOf _.support
     * @type boolean
     */
    support.spliceObjects = (arrayRef.splice.call(object, 0, 1), !object[0]);

    /**
     * Detect lack of support for accessing string characters by index.
     *
     * IE < 8 can't access characters by index and IE 8 can only access
     * characters by index on string literals.
     *
     * @memberOf _.support
     * @type boolean
     */
    support.unindexedChars = ('x'[0] + Object('x')[0]) != 'xx';
  }(1));

  /*--------------------------------------------------------------------------*/

  /**
   * The template used to create iterator functions.
   *
   * @private
   * @param {Object} data The data object used to populate the text.
   * @returns {string} Returns the interpolated text.
   */
  var iteratorTemplate = function(obj) {

    var __p = 'var index, iterable = ' +
    (obj.firstArg) +
    ', result = ' +
    (obj.init) +
    ';\nif (!iterable) return result;\n' +
    (obj.top) +
    ';';
     if (obj.array) {
    __p += '\nvar length = iterable.length; index = -1;\nif (' +
    (obj.array) +
    ') {  ';
     if (support.unindexedChars) {
    __p += '\n  if (isString(iterable)) {\n    iterable = iterable.split(\'\')\n  }  ';
     }
    __p += '\n  while (++index < length) {\n    ' +
    (obj.loop) +
    ';\n  }\n}\nelse {  ';
     } else if (support.nonEnumArgs) {
    __p += '\n  var length = iterable.length; index = -1;\n  if (length && isArguments(iterable)) {\n    while (++index < length) {\n      index += \'\';\n      ' +
    (obj.loop) +
    ';\n    }\n  } else {  ';
     }

     if (support.enumPrototypes) {
    __p += '\n  var skipProto = typeof iterable == \'function\';\n  ';
     }

     if (support.enumErrorProps) {
    __p += '\n  var skipErrorProps = iterable === errorProto || iterable instanceof Error;\n  ';
     }

        var conditions = [];    if (support.enumPrototypes) { conditions.push('!(skipProto && index == "prototype")'); }    if (support.enumErrorProps)  { conditions.push('!(skipErrorProps && (index == "message" || index == "name"))'); }

     if (obj.useHas && obj.keys) {
    __p += '\n  var ownIndex = -1,\n      ownProps = objectTypes[typeof iterable] && keys(iterable),\n      length = ownProps ? ownProps.length : 0;\n\n  while (++ownIndex < length) {\n    index = ownProps[ownIndex];\n';
        if (conditions.length) {
    __p += '    if (' +
    (conditions.join(' && ')) +
    ') {\n  ';
     }
    __p +=
    (obj.loop) +
    ';    ';
     if (conditions.length) {
    __p += '\n    }';
     }
    __p += '\n  }  ';
     } else {
    __p += '\n  for (index in iterable) {\n';
        if (obj.useHas) { conditions.push("hasOwnProperty.call(iterable, index)"); }    if (conditions.length) {
    __p += '    if (' +
    (conditions.join(' && ')) +
    ') {\n  ';
     }
    __p +=
    (obj.loop) +
    ';    ';
     if (conditions.length) {
    __p += '\n    }';
     }
    __p += '\n  }    ';
     if (support.nonEnumShadows) {
    __p += '\n\n  if (iterable !== objectProto) {\n    var ctor = iterable.constructor,\n        isProto = iterable === (ctor && ctor.prototype),\n        className = iterable === stringProto ? stringClass : iterable === errorProto ? errorClass : toString.call(iterable),\n        nonEnum = nonEnumProps[className];\n      ';
     for (k = 0; k < 7; k++) {
    __p += '\n    index = \'' +
    (obj.shadowedProps[k]) +
    '\';\n    if ((!(isProto && nonEnum[index]) && hasOwnProperty.call(iterable, index))';
            if (!obj.useHas) {
    __p += ' || (!nonEnum[index] && iterable[index] !== objectProto[index])';
     }
    __p += ') {\n      ' +
    (obj.loop) +
    ';\n    }      ';
     }
    __p += '\n  }    ';
     }

     }

     if (obj.array || support.nonEnumArgs) {
    __p += '\n}';
     }
    __p +=
    (obj.bottom) +
    ';\nreturn result';

    return __p
  };

  /*--------------------------------------------------------------------------*/

  /**
   * The base implementation of `_.bind` that creates the bound function and
   * sets its meta data.
   *
   * @private
   * @param {Array} bindData The bind data array.
   * @returns {Function} Returns the new bound function.
   */
  function baseBind(bindData) {
    var func = bindData[0],
        partialArgs = bindData[2],
        thisArg = bindData[4];

    function bound() {
      // `Function#bind` spec
      // http://es5.github.io/#x15.3.4.5
      if (partialArgs) {
        // avoid `arguments` object deoptimizations by using `slice` instead
        // of `Array.prototype.slice.call` and not assigning `arguments` to a
        // variable as a ternary expression
        var args = slice(partialArgs);
        push.apply(args, arguments);
      }
      // mimic the constructor's `return` behavior
      // http://es5.github.io/#x13.2.2
      if (this instanceof bound) {
        // ensure `new bound` is an instance of `func`
        var thisBinding = baseCreate(func.prototype),
            result = func.apply(thisBinding, args || arguments);
        return isObject(result) ? result : thisBinding;
      }
      return func.apply(thisArg, args || arguments);
    }
    setBindData(bound, bindData);
    return bound;
  }

  /**
   * The base implementation of `_.create` without support for assigning
   * properties to the created object.
   *
   * @private
   * @param {Object} prototype The object to inherit from.
   * @returns {Object} Returns the new object.
   */
  function baseCreate(prototype, properties) {
    return isObject(prototype) ? nativeCreate(prototype) : {};
  }
  // fallback for browsers without `Object.create`
  if (!nativeCreate) {
    baseCreate = (function() {
      function Object() {}
      return function(prototype) {
        if (isObject(prototype)) {
          Object.prototype = prototype;
          var result = new Object;
          Object.prototype = null;
        }
        return result || root.Object();
      };
    }());
  }

  /**
   * The base implementation of `_.createCallback` without support for creating
   * "_.pluck" or "_.where" style callbacks.
   *
   * @private
   * @param {*} [func=identity] The value to convert to a callback.
   * @param {*} [thisArg] The `this` binding of the created callback.
   * @param {number} [argCount] The number of arguments the callback accepts.
   * @returns {Function} Returns a callback function.
   */
  function baseCreateCallback(func, thisArg, argCount) {
    if (typeof func != 'function') {
      return identity;
    }
    // exit early for no `thisArg` or already bound by `Function#bind`
    if (typeof thisArg == 'undefined' || !('prototype' in func)) {
      return func;
    }
    var bindData = func.__bindData__;
    if (typeof bindData == 'undefined') {
      if (support.funcNames) {
        bindData = !func.name;
      }
      bindData = bindData || !support.funcDecomp;
      if (!bindData) {
        var source = fnToString.call(func);
        if (!support.funcNames) {
          bindData = !reFuncName.test(source);
        }
        if (!bindData) {
          // checks if `func` references the `this` keyword and stores the result
          bindData = reThis.test(source);
          setBindData(func, bindData);
        }
      }
    }
    // exit early if there are no `this` references or `func` is bound
    if (bindData === false || (bindData !== true && bindData[1] & 1)) {
      return func;
    }
    switch (argCount) {
      case 1: return function(value) {
        return func.call(thisArg, value);
      };
      case 2: return function(a, b) {
        return func.call(thisArg, a, b);
      };
      case 3: return function(value, index, collection) {
        return func.call(thisArg, value, index, collection);
      };
      case 4: return function(accumulator, value, index, collection) {
        return func.call(thisArg, accumulator, value, index, collection);
      };
    }
    return bind(func, thisArg);
  }

  /**
   * The base implementation of `createWrapper` that creates the wrapper and
   * sets its meta data.
   *
   * @private
   * @param {Array} bindData The bind data array.
   * @returns {Function} Returns the new function.
   */
  function baseCreateWrapper(bindData) {
    var func = bindData[0],
        bitmask = bindData[1],
        partialArgs = bindData[2],
        partialRightArgs = bindData[3],
        thisArg = bindData[4],
        arity = bindData[5];

    var isBind = bitmask & 1,
        isBindKey = bitmask & 2,
        isCurry = bitmask & 4,
        isCurryBound = bitmask & 8,
        key = func;

    function bound() {
      var thisBinding = isBind ? thisArg : this;
      if (partialArgs) {
        var args = slice(partialArgs);
        push.apply(args, arguments);
      }
      if (partialRightArgs || isCurry) {
        args || (args = slice(arguments));
        if (partialRightArgs) {
          push.apply(args, partialRightArgs);
        }
        if (isCurry && args.length < arity) {
          bitmask |= 16 & ~32;
          return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
        }
      }
      args || (args = arguments);
      if (isBindKey) {
        func = thisBinding[key];
      }
      if (this instanceof bound) {
        thisBinding = baseCreate(func.prototype);
        var result = func.apply(thisBinding, args);
        return isObject(result) ? result : thisBinding;
      }
      return func.apply(thisBinding, args);
    }
    setBindData(bound, bindData);
    return bound;
  }

  /**
   * Creates a function that, when called, either curries or invokes `func`
   * with an optional `this` binding and partially applied arguments.
   *
   * @private
   * @param {Function|string} func The function or method name to reference.
   * @param {number} bitmask The bitmask of method flags to compose.
   *  The bitmask may be composed of the following flags:
   *  1 - `_.bind`
   *  2 - `_.bindKey`
   *  4 - `_.curry`
   *  8 - `_.curry` (bound)
   *  16 - `_.partial`
   *  32 - `_.partialRight`
   * @param {Array} [partialArgs] An array of arguments to prepend to those
   *  provided to the new function.
   * @param {Array} [partialRightArgs] An array of arguments to append to those
   *  provided to the new function.
   * @param {*} [thisArg] The `this` binding of `func`.
   * @param {number} [arity] The arity of `func`.
   * @returns {Function} Returns the new function.
   */
  function createWrapper(func, bitmask, partialArgs, partialRightArgs, thisArg, arity) {
    var isBind = bitmask & 1,
        isBindKey = bitmask & 2,
        isCurry = bitmask & 4,
        isCurryBound = bitmask & 8,
        isPartial = bitmask & 16,
        isPartialRight = bitmask & 32;

    if (!isBindKey && !isFunction(func)) {
      throw new TypeError;
    }
    if (isPartial && !partialArgs.length) {
      bitmask &= ~16;
      isPartial = partialArgs = false;
    }
    if (isPartialRight && !partialRightArgs.length) {
      bitmask &= ~32;
      isPartialRight = partialRightArgs = false;
    }
    var bindData = func && func.__bindData__;
    if (bindData && bindData !== true) {
      // clone `bindData`
      bindData = slice(bindData);
      if (bindData[2]) {
        bindData[2] = slice(bindData[2]);
      }
      if (bindData[3]) {
        bindData[3] = slice(bindData[3]);
      }
      // set `thisBinding` is not previously bound
      if (isBind && !(bindData[1] & 1)) {
        bindData[4] = thisArg;
      }
      // set if previously bound but not currently (subsequent curried functions)
      if (!isBind && bindData[1] & 1) {
        bitmask |= 8;
      }
      // set curried arity if not yet set
      if (isCurry && !(bindData[1] & 4)) {
        bindData[5] = arity;
      }
      // append partial left arguments
      if (isPartial) {
        push.apply(bindData[2] || (bindData[2] = []), partialArgs);
      }
      // append partial right arguments
      if (isPartialRight) {
        unshift.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
      }
      // merge flags
      bindData[1] |= bitmask;
      return createWrapper.apply(null, bindData);
    }
    // fast path for `_.bind`
    var creater = (bitmask == 1 || bitmask === 17) ? baseBind : baseCreateWrapper;
    return creater([func, bitmask, partialArgs, partialRightArgs, thisArg, arity]);
  }

  /**
   * Creates compiled iteration functions.
   *
   * @private
   * @param {...Object} [options] The compile options object(s).
   * @param {string} [options.array] Code to determine if the iterable is an array or array-like.
   * @param {boolean} [options.useHas] Specify using `hasOwnProperty` checks in the object loop.
   * @param {Function} [options.keys] A reference to `_.keys` for use in own property iteration.
   * @param {string} [options.args] A comma separated string of iteration function arguments.
   * @param {string} [options.top] Code to execute before the iteration branches.
   * @param {string} [options.loop] Code to execute in the object loop.
   * @param {string} [options.bottom] Code to execute after the iteration branches.
   * @returns {Function} Returns the compiled function.
   */
  function createIterator() {
    // data properties
    iteratorData.shadowedProps = shadowedProps;

    // iterator options
    iteratorData.array = iteratorData.bottom = iteratorData.loop = iteratorData.top = '';
    iteratorData.init = 'iterable';
    iteratorData.useHas = true;

    // merge options into a template data object
    for (var object, index = 0; object = arguments[index]; index++) {
      for (var key in object) {
        iteratorData[key] = object[key];
      }
    }
    var args = iteratorData.args;
    iteratorData.firstArg = /^[^,]+/.exec(args)[0];

    // create the function factory
    var factory = Function(
        'baseCreateCallback, errorClass, errorProto, hasOwnProperty, ' +
        'indicatorObject, isArguments, isArray, isString, keys, objectProto, ' +
        'objectTypes, nonEnumProps, stringClass, stringProto, toString',
      'return function(' + args + ') {\n' + iteratorTemplate(iteratorData) + '\n}'
    );

    // return the compiled function
    return factory(
      baseCreateCallback, errorClass, errorProto, hasOwnProperty,
      indicatorObject, isArguments, isArray, isString, iteratorData.keys, objectProto,
      objectTypes, nonEnumProps, stringClass, stringProto, toString
    );
  }

  /**
   * Checks if `value` is a native function.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
   */
  function isNative(value) {
    return typeof value == 'function' && reNative.test(value);
  }

  /**
   * Sets `this` binding data on a given function.
   *
   * @private
   * @param {Function} func The function to set data on.
   * @param {Array} value The data array to set.
   */
  var setBindData = !defineProperty ? noop : function(func, value) {
    descriptor.value = value;
    defineProperty(func, '__bindData__', descriptor);
  };

  /*--------------------------------------------------------------------------*/

  /**
   * Checks if `value` is an `arguments` object.
   *
   * @static
   * @memberOf _
   * @category Objects
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if the `value` is an `arguments` object, else `false`.
   * @example
   *
   * (function() { return _.isArguments(arguments); })(1, 2, 3);
   * // => true
   *
   * _.isArguments([1, 2, 3]);
   * // => false
   */
  function isArguments(value) {
    return value && typeof value == 'object' && typeof value.length == 'number' &&
      toString.call(value) == argsClass || false;
  }
  // fallback for browsers that can't detect `arguments` objects by [[Class]]
  if (!support.argsClass) {
    isArguments = function(value) {
      return value && typeof value == 'object' && typeof value.length == 'number' &&
        hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee') || false;
    };
  }

  /**
   * Checks if `value` is an array.
   *
   * @static
   * @memberOf _
   * @type Function
   * @category Objects
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if the `value` is an array, else `false`.
   * @example
   *
   * (function() { return _.isArray(arguments); })();
   * // => false
   *
   * _.isArray([1, 2, 3]);
   * // => true
   */
  var isArray = nativeIsArray || function(value) {
    return value && typeof value == 'object' && typeof value.length == 'number' &&
      toString.call(value) == arrayClass || false;
  };

  /**
   * A fallback implementation of `Object.keys` which produces an array of the
   * given object's own enumerable property names.
   *
   * @private
   * @type Function
   * @param {Object} object The object to inspect.
   * @returns {Array} Returns an array of property names.
   */
  var shimKeys = createIterator({
    'args': 'object',
    'init': '[]',
    'top': 'if (!(objectTypes[typeof object])) return result',
    'loop': 'result.push(index)'
  });

  /**
   * Creates an array composed of the own enumerable property names of an object.
   *
   * @static
   * @memberOf _
   * @category Objects
   * @param {Object} object The object to inspect.
   * @returns {Array} Returns an array of property names.
   * @example
   *
   * _.keys({ 'one': 1, 'two': 2, 'three': 3 });
   * // => ['one', 'two', 'three'] (property order is not guaranteed across environments)
   */
  var keys = !nativeKeys ? shimKeys : function(object) {
    if (!isObject(object)) {
      return [];
    }
    if ((support.enumPrototypes && typeof object == 'function') ||
        (support.nonEnumArgs && object.length && isArguments(object))) {
      return shimKeys(object);
    }
    return nativeKeys(object);
  };

  /** Reusable iterator options shared by `each`, `forIn`, and `forOwn` */
  var eachIteratorOptions = {
    'args': 'collection, callback, thisArg',
    'top': "callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3)",
    'array': "typeof length == 'number'",
    'keys': keys,
    'loop': 'if (callback(iterable[index], index, collection) === false) return result'
  };

  /** Reusable iterator options for `assign` and `defaults` */
  var defaultsIteratorOptions = {
    'args': 'object, source, guard',
    'top':
      'var args = arguments,\n' +
      '    argsIndex = 0,\n' +
      "    argsLength = typeof guard == 'number' ? 2 : args.length;\n" +
      'while (++argsIndex < argsLength) {\n' +
      '  iterable = args[argsIndex];\n' +
      '  if (iterable && objectTypes[typeof iterable]) {',
    'keys': keys,
    'loop': "if (typeof result[index] == 'undefined') result[index] = iterable[index]",
    'bottom': '  }\n}'
  };

  /**
   * A function compiled to iterate `arguments` objects, arrays, objects, and
   * strings consistenly across environments, executing the callback for each
   * element in the collection. The callback is bound to `thisArg` and invoked
   * with three arguments; (value, index|key, collection). Callbacks may exit
   * iteration early by explicitly returning `false`.
   *
   * @private
   * @type Function
   * @param {Array|Object|string} collection The collection to iterate over.
   * @param {Function} [callback=identity] The function called per iteration.
   * @param {*} [thisArg] The `this` binding of `callback`.
   * @returns {Array|Object|string} Returns `collection`.
   */
  var baseEach = createIterator(eachIteratorOptions);

  /*--------------------------------------------------------------------------*/

  /**
   * Assigns own enumerable properties of source object(s) to the destination
   * object. Subsequent sources will overwrite property assignments of previous
   * sources. If a callback is provided it will be executed to produce the
   * assigned values. The callback is bound to `thisArg` and invoked with two
   * arguments; (objectValue, sourceValue).
   *
   * @static
   * @memberOf _
   * @type Function
   * @alias extend
   * @category Objects
   * @param {Object} object The destination object.
   * @param {...Object} [source] The source objects.
   * @param {Function} [callback] The function to customize assigning values.
   * @param {*} [thisArg] The `this` binding of `callback`.
   * @returns {Object} Returns the destination object.
   * @example
   *
   * _.assign({ 'name': 'fred' }, { 'employer': 'slate' });
   * // => { 'name': 'fred', 'employer': 'slate' }
   *
   * var defaults = _.partialRight(_.assign, function(a, b) {
   *   return typeof a == 'undefined' ? b : a;
   * });
   *
   * var object = { 'name': 'barney' };
   * defaults(object, { 'name': 'fred', 'employer': 'slate' });
   * // => { 'name': 'barney', 'employer': 'slate' }
   */
  var assign = createIterator(defaultsIteratorOptions, {
    'top':
      defaultsIteratorOptions.top.replace(';',
        ';\n' +
        "if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {\n" +
        '  var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);\n' +
        "} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {\n" +
        '  callback = args[--argsLength];\n' +
        '}'
      ),
    'loop': 'result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]'
  });

  /**
   * Checks if `value` is a function.
   *
   * @static
   * @memberOf _
   * @category Objects
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if the `value` is a function, else `false`.
   * @example
   *
   * _.isFunction(_);
   * // => true
   */
  function isFunction(value) {
    return typeof value == 'function';
  }
  // fallback for older versions of Chrome and Safari
  if (isFunction(/x/)) {
    isFunction = function(value) {
      return typeof value == 'function' && toString.call(value) == funcClass;
    };
  }

  /**
   * Checks if `value` is the language type of Object.
   * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
   *
   * @static
   * @memberOf _
   * @category Objects
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if the `value` is an object, else `false`.
   * @example
   *
   * _.isObject({});
   * // => true
   *
   * _.isObject([1, 2, 3]);
   * // => true
   *
   * _.isObject(1);
   * // => false
   */
  function isObject(value) {
    // check if the value is the ECMAScript language type of Object
    // http://es5.github.io/#x8
    // and avoid a V8 bug
    // http://code.google.com/p/v8/issues/detail?id=2291
    return !!(value && objectTypes[typeof value]);
  }

  /**
   * Checks if `value` is a string.
   *
   * @static
   * @memberOf _
   * @category Objects
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if the `value` is a string, else `false`.
   * @example
   *
   * _.isString('fred');
   * // => true
   */
  function isString(value) {
    return typeof value == 'string' ||
      value && typeof value == 'object' && toString.call(value) == stringClass || false;
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Iterates over elements of a collection, executing the callback for each
   * element. The callback is bound to `thisArg` and invoked with three arguments;
   * (value, index|key, collection). Callbacks may exit iteration early by
   * explicitly returning `false`.
   *
   * Note: As with other "Collections" methods, objects with a `length` property
   * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
   * may be used for object iteration.
   *
   * @static
   * @memberOf _
   * @alias each
   * @category Collections
   * @param {Array|Object|string} collection The collection to iterate over.
   * @param {Function} [callback=identity] The function called per iteration.
   * @param {*} [thisArg] The `this` binding of `callback`.
   * @returns {Array|Object|string} Returns `collection`.
   * @example
   *
   * _([1, 2, 3]).forEach(function(num) { console.log(num); }).join(',');
   * // => logs each number and returns '1,2,3'
   *
   * _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { console.log(num); });
   * // => logs each number and returns the object (property order is not guaranteed across environments)
   */
  function forEach(collection, callback, thisArg) {
    if (callback && typeof thisArg == 'undefined' && isArray(collection)) {
      var index = -1,
          length = collection.length;

      while (++index < length) {
        if (callback(collection[index], index, collection) === false) {
          break;
        }
      }
    } else {
      baseEach(collection, callback, thisArg);
    }
    return collection;
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Creates a function that, when called, invokes `func` with the `this`
   * binding of `thisArg` and prepends any additional `bind` arguments to those
   * provided to the bound function.
   *
   * @static
   * @memberOf _
   * @category Functions
   * @param {Function} func The function to bind.
   * @param {*} [thisArg] The `this` binding of `func`.
   * @param {...*} [arg] Arguments to be partially applied.
   * @returns {Function} Returns the new bound function.
   * @example
   *
   * var func = function(greeting) {
   *   return greeting + ' ' + this.name;
   * };
   *
   * func = _.bind(func, { 'name': 'fred' }, 'hi');
   * func();
   * // => 'hi fred'
   */
  function bind(func, thisArg) {
    return arguments.length > 2
      ? createWrapper(func, 17, slice(arguments, 2), null, thisArg)
      : createWrapper(func, 1, null, null, thisArg);
  }

  /*--------------------------------------------------------------------------*/

  /**
   * This method returns the first argument provided to it.
   *
   * @static
   * @memberOf _
   * @category Utilities
   * @param {*} value Any value.
   * @returns {*} Returns `value`.
   * @example
   *
   * var object = { 'name': 'fred' };
   * _.identity(object) === object;
   * // => true
   */
  function identity(value) {
    return value;
  }

  /**
   * A no-operation function.
   *
   * @static
   * @memberOf _
   * @category Utilities
   * @example
   *
   * var object = { 'name': 'fred' };
   * _.noop(object) === undefined;
   * // => true
   */
  function noop() {
    // no operation performed
  }

  /*--------------------------------------------------------------------------*/

  lodash.assign = assign;
  lodash.bind = bind;
  lodash.forEach = forEach;
  lodash.keys = keys;

  lodash.each = forEach;
  lodash.extend = assign;

  /*--------------------------------------------------------------------------*/

  lodash.identity = identity;
  lodash.isArguments = isArguments;
  lodash.isArray = isArray;
  lodash.isFunction = isFunction;
  lodash.isObject = isObject;
  lodash.isString = isString;
  lodash.noop = noop;

  /*--------------------------------------------------------------------------*/

  /**
   * The semantic version number.
   *
   * @static
   * @memberOf _
   * @type string
   */
  lodash.VERSION = '2.4.1';

  /*--------------------------------------------------------------------------*/

  // some AMD build optimizers like r.js check for condition patterns like the following:
  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    // define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module
    define('lodash', function() {
      return lodash;
    });
  }

}.call(this));

!function (name, definition) {
  if (typeof module != 'undefined') module.exports = definition()
  else if (typeof define == 'function' && typeof define.amd == 'object') define(name, definition)
  else this[name] = definition()
}('messaging', function (ready) {

  var _ = window._ || require('lodash');
  var settings = {
    xdomain: '*',
    ie : navigator.userAgent.toLowerCase().indexOf('msie') > -1,
    scrollToTop: true
  };

  var bind = function (el, evt, func, prop) {
    if (window.addEventListener) {
      el.addEventListener(evt, func, prop);
    } else if (window.attachEvent) {
      el.attachEvent("on" + evt, func);
    }
  };


  var MessageHandler = function (conf, methods) {
    this.settings = _.extend({}, settings, conf);
    this.methods = methods;
  };

  MessageHandler.prototype.handle = function (e) {
    var matches = false;

    if (this.settings.xdomain !== '*') {
      var regex = new RegExp(this.settings.xdomain + '$');
      if (!e.origin) {
        throw new Error("messageHandler( elem, e): There is no origin.  You are viewing the page from your file system.  Please run through a web server.");
      }

      if (e.origin.match(regex)) {
        matches = true;
      } else {
        throw new Error("messageHandler( elem, e): The orgin " + e.origin + " doesn't match the responsiveiframe  xdomain "+this.settings.xdomain+".");
      }

    }

    if (this.settings.xdomain === '*' || matches) {
      var message = JSON.parse(e.data);
      var method = message.method;
      var args = message.args;
      if (!this.methods[method]) {
        throw new Error("Missing method " + method + " from handlers.");
      }

      this.methods[method].apply(window, args);
    }
    return false;
  };

  MessageHandler.prototype.send = function (method, args) {
    if (!window.parent.postMessage) {
      return;
    };

    var message = {
      method: method,
      args: args,
    };
    message = JSON.stringify(message);
    window.parent.postMessage(message, this.settings.target_url);
  };

  var initMessaging = function (conf, methods) {
    var messanger = new MessageHandler(conf, methods);

    if (window.postMessage) {
      bind(window, 'message', _.bind(messanger.handle, messanger), false);
    }

    return messanger;
  };

  return {
    initMessaging: initMessaging,
  };
});



'use strict';
(function () {
    // Deps
    var _ = require('lodash');
    var messaging = require('messaging');

    // Config/Option parsing
    var current_url = window.location + '';
    var config = {
        comments_root: ADN_CONFIG.app_root_url,
        comments_url: current_url,
        comments_origin: current_url,
    };

    var valid_config_keys = ADN_CONFIG.valid_config_keys.join(' ');

    local_config =  window.ADN_COMMENTS_CONFIG || {};
    config = _.extend({}, config, local_config);

    // Create query string which passes configuration options to coments widget
    var encode_config = {};
    _.forEach(config, function (val, key) {
      if (valid_config_keys.indexOf(key) < 0) {
        return;
      }
      encode_config[key] = encodeURIComponent(val);
    });
    var query_string = [];
    _.forEach(encode_config, function (val, key) {
      query_string.push(key + '=' + val);
    });
    query_string = query_string.join('&');

    // Embed the iframe that will contain the coments widget
    var scriptTag = document.getElementById('adn-comments');

    var iframeSrc = config.comments_root + '/index.html?' + query_string;
    var iframe = document.createElement('iframe');
    iframe.style.width = '100%';
    iframe.style.height = '200px';
    iframe.style.border = 'none';
    iframe.frameborder = '0';
    iframe.marginwidth = '0';
    iframe.marginheight = '0';
    iframe.scrolling = 'no';
    iframe.src = iframeSrc;
    var parent = scriptTag.parentNode;
    parent.appendChild(iframe);

    messaging.initMessaging({
        xdomain: config.comments_root,
    }, {
        setHeight: function (height) {
            iframe.style.height = height + 'px';
        }
    });

})();