From a735c6fc72ac391920aed71ce015363a6a33648d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?"J.=20Rene=CC=81e=20Beach"?= <splendidnoise@gmail.com>
Date: Sun, 30 Sep 2012 20:00:59 -0400
Subject: [PATCH] Issue #1149866 by jessebeach: Adding Backbone and Underscore
 to core.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: J. Renée Beach <splendidnoise@gmail.com>
---
 core/misc/backbone/backbone-min.js     |   40 ++++++++++++++++++++++++++++++++
 core/misc/underscore/underscore-min.js |    5 ++++
 core/modules/system/system.module      |   23 ++++++++++++++++++
 3 files changed, 68 insertions(+)
 create mode 100644 core/misc/backbone/backbone-min.js
 create mode 100644 core/misc/underscore/underscore-min.js

diff --git a/core/misc/backbone/backbone-min.js b/core/misc/backbone/backbone-min.js
new file mode 100644
index 0000000..68befe0
--- /dev/null
+++ b/core/misc/backbone/backbone-min.js
@@ -0,0 +1,40 @@
+// Backbone.js 0.9.2
+
+// (c) 2010-2012 Jeremy Ashkenas, DocumentCloud Inc.
+// Backbone may be freely distributed under the MIT license.
+// For all details and documentation:
+// http://backbonejs.org
+(function(){var k=this,y=k.Backbone,z=Array.prototype.splice,g;g="undefined"!==typeof exports?exports:k.Backbone={};g.VERSION="0.9.2";var f=k._;!f&&"undefined"!==typeof require&&(f=require("underscore"));g.$=k.jQuery||k.Zepto||k.ender;g.noConflict=function(){k.Backbone=y;return this};g.emulateHTTP=!1;g.emulateJSON=!1;var p=/\s+/,h=g.Events={on:function(a,b,c){var d,e;if(!b)return this;a=a.split(p);for(d=this._callbacks||(this._callbacks={});e=a.shift();)e=d[e]||(d[e]=[]),e.push(b,c);return this},
+off:function(a,b,c){var d,e,m;if(!(e=this._callbacks))return this;if(!a&&!b&&!c)return delete this._callbacks,this;for(a=a?a.split(p):f.keys(e);d=a.shift();)if(!(m=e[d])||!b&&!c)delete e[d];else for(d=m.length-2;0<=d;d-=2)b&&m[d]!==b||c&&m[d+1]!==c||m.splice(d,2);return this},trigger:function(a){var b,c,d,e,f,g,j;if(!(c=this._callbacks))return this;j=[];a=a.split(p);e=1;for(f=arguments.length;e<f;e++)j[e-1]=arguments[e];for(;b=a.shift();){if(g=c.all)g=g.slice();if(d=c[b])d=d.slice();if(d){e=0;for(f=
+d.length;e<f;e+=2)d[e].apply(d[e+1]||this,j)}if(g){b=[b].concat(j);e=0;for(f=g.length;e<f;e+=2)g[e].apply(g[e+1]||this,b)}}return this}};h.bind=h.on;h.unbind=h.off;var o=g.Model=function(a,b){var c;a||(a={});b&&b.collection&&(this.collection=b.collection);b&&b.parse&&(a=this.parse(a));if(c=l(this,"defaults"))a=f.extend({},c,a);this.attributes={};this._escapedAttributes={};this.cid=f.uniqueId("c");this.changed={};this._silent={};this._pending={};this.set(a,{silent:!0});this.changed={};this._silent=
+{};this._pending={};this._previousAttributes=f.clone(this.attributes);this.initialize.apply(this,arguments)};f.extend(o.prototype,h,{changed:null,_silent:null,_pending:null,idAttribute:"id",initialize:function(){},toJSON:function(){return f.clone(this.attributes)},sync:function(){return g.sync.apply(this,arguments)},get:function(a){return this.attributes[a]},escape:function(a){var b;if(b=this._escapedAttributes[a])return b;b=this.get(a);return this._escapedAttributes[a]=f.escape(null==b?"":""+b)},
+has:function(a){return null!=this.get(a)},set:function(a,b,c){var d,e;f.isObject(a)||null==a?(d=a,c=b):(d={},d[a]=b);c||(c={});if(!d)return this;d instanceof o&&(d=d.attributes);if(c.unset)for(e in d)d[e]=void 0;if(!this._validate(d,c))return!1;this.idAttribute in d&&(this.id=d[this.idAttribute]);var b=c.changes={},g=this.attributes,i=this._escapedAttributes,j=this._previousAttributes||{};for(e in d){a=d[e];if(!f.isEqual(g[e],a)||c.unset&&f.has(g,e))delete i[e],(c.silent?this._silent:b)[e]=!0;c.unset?
+delete g[e]:g[e]=a;!f.isEqual(j[e],a)||f.has(g,e)!==f.has(j,e)?(this.changed[e]=a,c.silent||(this._pending[e]=!0)):(delete this.changed[e],delete this._pending[e])}c.silent||this.change(c);return this},unset:function(a,b){b=f.extend({},b,{unset:!0});return this.set(a,null,b)},clear:function(a){a=f.extend({},a,{unset:!0});return this.set(f.clone(this.attributes),a)},fetch:function(a){var a=a?f.clone(a):{},b=this,c=a.success;a.success=function(d,e,f){if(!b.set(b.parse(d,f),a))return!1;c&&c(b,d,a);b.trigger("sync",
+b,d,a)};a.error=g.wrapError(a.error,b,a);return this.sync("read",this,a)},save:function(a,b,c){var d,e,m;f.isObject(a)||null==a?(d=a,c=b):(d={},d[a]=b);c=c?f.clone(c):{};if(c.wait){if(!this._validate(d,c))return!1;e=f.clone(this.attributes)}a=f.extend({},c,{silent:!0});if(d&&!this.set(d,c.wait?a:c)||!d&&!this.isValid())return!1;var i=this,j=c.success;c.success=function(a,b,e){m=true;b=i.parse(a,e);c.wait&&(b=f.extend(d||{},b));if(!i.set(b,c))return false;j&&j(i,a,c);i.trigger("sync",i,a,c)};c.error=
+g.wrapError(c.error,i,c);b=this.sync(this.isNew()?"create":"update",this,c);!m&&c.wait&&(this.clear(a),this.set(e,a));return b},destroy:function(a){var a=a?f.clone(a):{},b=this,c=a.success,d=function(){b.trigger("destroy",b,b.collection,a)};a.success=function(e){(a.wait||b.isNew())&&d();c&&c(b,e,a);b.isNew()||b.trigger("sync",b,e,a)};if(this.isNew())return a.success(),!1;a.error=g.wrapError(a.error,b,a);var e=this.sync("delete",this,a);a.wait||d();return e},url:function(){var a=l(this,"urlRoot")||
+l(this.collection,"url")||s();return this.isNew()?a:a+("/"===a.charAt(a.length-1)?"":"/")+encodeURIComponent(this.id)},parse:function(a){return a},clone:function(){return new this.constructor(this.attributes)},isNew:function(){return null==this.id},change:function(a){a||(a={});var b=this._changing;this._changing=!0;for(var c in this._silent)this._pending[c]=!0;var d=f.extend({},a.changes,this._silent);this._silent={};for(c in d)this.trigger("change:"+c,this,this.get(c),a);if(b)return this;for(;!f.isEmpty(this._pending);){this._pending=
+{};this.trigger("change",this,a);for(c in this.changed)!this._pending[c]&&!this._silent[c]&&delete this.changed[c];this._previousAttributes=f.clone(this.attributes)}this._changing=!1;return this},hasChanged:function(a){return null==a?!f.isEmpty(this.changed):f.has(this.changed,a)},changedAttributes:function(a){if(!a)return this.hasChanged()?f.clone(this.changed):!1;var b,c=!1,d=this._previousAttributes,e;for(e in a)if(!f.isEqual(d[e],b=a[e]))(c||(c={}))[e]=b;return c},previous:function(a){return null==
+a||!this._previousAttributes?null:this._previousAttributes[a]},previousAttributes:function(){return f.clone(this._previousAttributes)},isValid:function(){return!this.validate||!this.validate(this.attributes)},_validate:function(a,b){if(b.silent||!this.validate)return!0;var a=f.extend({},this.attributes,a),c=this.validate(a,b);if(!c)return!0;b&&b.error?b.error(this,c,b):this.trigger("error",this,c,b);return!1}});var q=g.Collection=function(a,b){b||(b={});b.model&&(this.model=b.model);void 0!==b.comparator&&
+(this.comparator=b.comparator);this._reset();this.initialize.apply(this,arguments);a&&(b.parse&&(a=this.parse(a)),this.reset(a,{silent:!0,parse:b.parse}))};f.extend(q.prototype,h,{model:o,initialize:function(){},toJSON:function(a){return this.map(function(b){return b.toJSON(a)})},sync:function(){return g.sync.apply(this,arguments)},add:function(a,b){var c,d,e,g,i,j={},k={},h=[];b||(b={});a=f.isArray(a)?a.slice():[a];c=0;for(d=a.length;c<d;c++){if(!(e=a[c]=this._prepareModel(a[c],b)))throw Error("Can't add an invalid model to a collection");
+g=e.cid;i=e.id;j[g]||this._byCid[g]||null!=i&&(k[i]||this._byId[i])?h.push(c):j[g]=k[i]=e}for(c=h.length;c--;)h[c]=a.splice(h[c],1)[0];c=0;for(d=a.length;c<d;c++)(e=a[c]).on("all",this._onModelEvent,this),this._byCid[e.cid]=e,null!=e.id&&(this._byId[e.id]=e);this.length+=d;z.apply(this.models,[null!=b.at?b.at:this.models.length,0].concat(a));if(b.merge){c=0;for(d=h.length;c<d;c++)(e=this._byId[h[c].id])&&e.set(h[c],b)}this.comparator&&null==b.at&&this.sort({silent:!0});if(b.silent)return this;c=0;
+for(d=this.models.length;c<d;c++)if(j[(e=this.models[c]).cid])b.index=c,e.trigger("add",e,this,b);return this},remove:function(a,b){var c,d,e,g;b||(b={});a=f.isArray(a)?a.slice():[a];c=0;for(d=a.length;c<d;c++)if(g=this.getByCid(a[c])||this.get(a[c]))delete this._byId[g.id],delete this._byCid[g.cid],e=this.indexOf(g),this.models.splice(e,1),this.length--,b.silent||(b.index=e,g.trigger("remove",g,this,b)),this._removeReference(g);return this},push:function(a,b){a=this._prepareModel(a,b);this.add(a,
+b);return a},pop:function(a){var b=this.at(this.length-1);this.remove(b,a);return b},unshift:function(a,b){a=this._prepareModel(a,b);this.add(a,f.extend({at:0},b));return a},shift:function(a){var b=this.at(0);this.remove(b,a);return b},slice:function(a,b){return this.models.slice(a,b)},get:function(a){return null==a?void 0:this._byId[null!=a.id?a.id:a]},getByCid:function(a){return a&&this._byCid[a.cid||a]},at:function(a){return this.models[a]},where:function(a){return f.isEmpty(a)?[]:this.filter(function(b){for(var c in a)if(a[c]!==
+b.get(c))return!1;return!0})},sort:function(a){a||(a={});if(!this.comparator)throw Error("Cannot sort a set without a comparator");var b=f.bind(this.comparator,this);1===this.comparator.length?this.models=this.sortBy(b):this.models.sort(b);a.silent||this.trigger("reset",this,a);return this},pluck:function(a){return f.map(this.models,function(b){return b.get(a)})},reset:function(a,b){a||(a=[]);b||(b={});for(var c=0,d=this.models.length;c<d;c++)this._removeReference(this.models[c]);this._reset();this.add(a,
+f.extend({silent:!0},b));b.silent||this.trigger("reset",this,b);return this},fetch:function(a){a=a?f.clone(a):{};void 0===a.parse&&(a.parse=!0);var b=this,c=a.success;a.success=function(d,e,f){b[a.add?"add":"reset"](b.parse(d,f),a);c&&c(b,d,a);b.trigger("sync",b,d,a)};a.error=g.wrapError(a.error,b,a);return this.sync("read",this,a)},create:function(a,b){var c=this,b=b?f.clone(b):{},a=this._prepareModel(a,b);if(!a)return!1;b.wait||c.add(a,b);var d=b.success;b.success=function(a,b,f){f.wait&&c.add(a,
+f);d&&d(a,b,f)};a.save(null,b);return a},parse:function(a){return a},clone:function(){return new this.constructor(this.models)},chain:function(){return f(this.models).chain()},_reset:function(){this.length=0;this.models=[];this._byId={};this._byCid={}},_prepareModel:function(a,b){if(a instanceof o)return a.collection||(a.collection=this),a;b||(b={});b.collection=this;var c=new this.model(a,b);return!c._validate(c.attributes,b)?!1:c},_removeReference:function(a){this===a.collection&&delete a.collection;
+a.off("all",this._onModelEvent,this)},_onModelEvent:function(a,b,c,d){("add"===a||"remove"===a)&&c!==this||("destroy"===a&&this.remove(b,d),b&&a==="change:"+b.idAttribute&&(delete this._byId[b.previous(b.idAttribute)],null!=b.id&&(this._byId[b.id]=b)),this.trigger.apply(this,arguments))}});f.each("forEach each map reduce reduceRight find detect filter select reject every all some any include contains invoke max min sortBy sortedIndex toArray size first initial rest last without indexOf shuffle lastIndexOf isEmpty groupBy".split(" "),
+function(a){q.prototype[a]=function(){return f[a].apply(f,[this.models].concat(f.toArray(arguments)))}});var t=g.Router=function(a){a||(a={});a.routes&&(this.routes=a.routes);this._bindRoutes();this.initialize.apply(this,arguments)},A=/:\w+/g,B=/\*\w+/g,C=/[-[\]{}()+?.,\\^$|#\s]/g;f.extend(t.prototype,h,{initialize:function(){},route:function(a,b,c){g.history||(g.history=new n);f.isRegExp(a)||(a=this._routeToRegExp(a));c||(c=this[b]);g.history.route(a,f.bind(function(d){d=this._extractParameters(a,
+d);c&&c.apply(this,d);this.trigger.apply(this,["route:"+b].concat(d));g.history.trigger("route",this,b,d)},this));return this},navigate:function(a,b){g.history.navigate(a,b)},_bindRoutes:function(){if(this.routes){var a=[],b;for(b in this.routes)a.unshift([b,this.routes[b]]);b=0;for(var c=a.length;b<c;b++)this.route(a[b][0],a[b][1],this[a[b][1]])}},_routeToRegExp:function(a){a=a.replace(C,"\\$&").replace(A,"([^/]+)").replace(B,"(.*?)");return RegExp("^"+a+"$")},_extractParameters:function(a,b){return a.exec(b).slice(1)}});
+var n=g.History=function(a){this.handlers=[];f.bindAll(this,"checkUrl");this.location=a&&a.location||k.location;this.history=a&&a.history||k.history},r=/^[#\/]/,D=/msie [\w.]+/,u=/\/$/;n.started=!1;f.extend(n.prototype,h,{interval:50,getHash:function(a){return(a=(a||this).location.href.match(/#(.*)$/))?a[1]:""},getFragment:function(a,b){if(null==a)if(this._hasPushState||!this._wantsHashChange||b){var a=this.location.pathname,c=this.options.root.replace(u,"");a.indexOf(c)||(a=a.substr(c.length))}else a=
+this.getHash();return decodeURIComponent(a.replace(r,""))},start:function(a){if(n.started)throw Error("Backbone.history has already been started");n.started=!0;this.options=f.extend({},{root:"/"},this.options,a);this._wantsHashChange=!1!==this.options.hashChange;this._wantsPushState=!!this.options.pushState;this._hasPushState=!(!this.options.pushState||!this.history||!this.history.pushState);var a=this.getFragment(),b=document.documentMode,b=D.exec(navigator.userAgent.toLowerCase())&&(!b||7>=b);u.test(this.options.root)||
+(this.options.root+="/");b&&this._wantsHashChange&&(this.iframe=g.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo("body")[0].contentWindow,this.navigate(a));this._hasPushState?g.$(window).bind("popstate",this.checkUrl):this._wantsHashChange&&"onhashchange"in window&&!b?g.$(window).bind("hashchange",this.checkUrl):this._wantsHashChange&&(this._checkUrlInterval=setInterval(this.checkUrl,this.interval));this.fragment=a;a=this.location;b=a.pathname.replace(/[^/]$/,"$&/")===this.options.root&&
+!a.search;if(this._wantsHashChange&&this._wantsPushState&&!this._hasPushState&&!b)return this.fragment=this.getFragment(null,!0),this.location.replace(this.options.root+this.location.search+"#"+this.fragment),!0;this._wantsPushState&&(this._hasPushState&&b&&a.hash)&&(this.fragment=this.getHash().replace(r,""),this.history.replaceState({},document.title,a.protocol+"//"+a.host+this.options.root+this.fragment));if(!this.options.silent)return this.loadUrl()},stop:function(){g.$(window).unbind("popstate",
+this.checkUrl).unbind("hashchange",this.checkUrl);clearInterval(this._checkUrlInterval);n.started=!1},route:function(a,b){this.handlers.unshift({route:a,callback:b})},checkUrl:function(){var a=this.getFragment();a===this.fragment&&this.iframe&&(a=this.getFragment(this.getHash(this.iframe)));if(a===this.fragment)return!1;this.iframe&&this.navigate(a);this.loadUrl()||this.loadUrl(this.getHash())},loadUrl:function(a){var b=this.fragment=this.getFragment(a);return f.any(this.handlers,function(a){if(a.route.test(b))return a.callback(b),
+!0})},navigate:function(a,b){if(!n.started)return!1;if(!b||!0===b)b={trigger:b};var c=(a||"").replace(r,"");if(this.fragment!==c){this.fragment=c;var d=(0!==c.indexOf(this.options.root)?this.options.root:"")+c;if(this._hasPushState)this.history[b.replace?"replaceState":"pushState"]({},document.title,d);else if(this._wantsHashChange)this._updateHash(this.location,c,b.replace),this.iframe&&c!==this.getFragment(this.getHash(this.iframe))&&(b.replace||this.iframe.document.open().close(),this._updateHash(this.iframe.location,
+c,b.replace));else return this.location.assign(d);b.trigger&&this.loadUrl(a)}},_updateHash:function(a,b,c){c?a.replace(a.href.replace(/(javascript:|#).*$/,"")+"#"+b):a.hash=b}});var v=g.View=function(a){this.cid=f.uniqueId("view");this._configure(a||{});this._ensureElement();this.initialize.apply(this,arguments);this.delegateEvents()},E=/^(\S+)\s*(.*)$/,w="model collection el id attributes className tagName".split(" ");f.extend(v.prototype,h,{tagName:"div",$:function(a){return this.$el.find(a)},initialize:function(){},
+render:function(){return this},dispose:function(){this.undelegateEvents();this.model&&this.model.off(null,null,this);this.collection&&this.collection.off(null,null,this);return this},remove:function(){this.dispose();this.$el.remove();return this},make:function(a,b,c){a=document.createElement(a);b&&g.$(a).attr(b);null!=c&&g.$(a).html(c);return a},setElement:function(a,b){this.$el&&this.undelegateEvents();this.$el=a instanceof g.$?a:g.$(a);this.el=this.$el[0];!1!==b&&this.delegateEvents();return this},
+delegateEvents:function(a){if(a||(a=l(this,"events"))){this.undelegateEvents();for(var b in a){var c=a[b];f.isFunction(c)||(c=this[a[b]]);if(!c)throw Error('Method "'+a[b]+'" does not exist');var d=b.match(E),e=d[1],d=d[2],c=f.bind(c,this),e=e+(".delegateEvents"+this.cid);""===d?this.$el.bind(e,c):this.$el.delegate(d,e,c)}}},undelegateEvents:function(){this.$el.unbind(".delegateEvents"+this.cid)},_configure:function(a){this.options&&(a=f.extend({},this.options,a));for(var b=0,c=w.length;b<c;b++){var d=
+w[b];a[d]&&(this[d]=a[d])}this.options=a},_ensureElement:function(){if(this.el)this.setElement(this.el,!1);else{var a=f.extend({},l(this,"attributes"));this.id&&(a.id=l(this,"id"));this.className&&(a["class"]=l(this,"className"));this.setElement(this.make(l(this,"tagName"),a),!1)}}});o.extend=q.extend=t.extend=v.extend=function(a,b){var c=this,d;d=a&&a.hasOwnProperty("constructor")?a.constructor:function(){c.apply(this,arguments)};f.extend(d,c);x.prototype=c.prototype;d.prototype=new x;a&&f.extend(d.prototype,
+a);b&&f.extend(d,b);d.prototype.constructor=d;d.__super__=c.prototype;return d};var F={create:"POST",update:"PUT","delete":"DELETE",read:"GET"};g.sync=function(a,b,c){var d=F[a];c||(c={});var e={type:d,dataType:"json"};c.url||(e.url=l(b,"url")||s());if(!c.data&&b&&("create"===a||"update"===a))e.contentType="application/json",e.data=JSON.stringify(b);g.emulateJSON&&(e.contentType="application/x-www-form-urlencoded",e.data=e.data?{model:e.data}:{});if(g.emulateHTTP&&("PUT"===d||"DELETE"===d))g.emulateJSON&&
+(e.data._method=d),e.type="POST",e.beforeSend=function(a){a.setRequestHeader("X-HTTP-Method-Override",d)};"GET"!==e.type&&!g.emulateJSON&&(e.processData=!1);return g.ajax(f.extend(e,c))};g.ajax=function(){return g.$.ajax.apply(g.$,arguments)};g.wrapError=function(a,b,c){return function(d,e){e=d===b?e:d;a?a(b,e,c):b.trigger("error",b,e,c)}};var x=function(){},l=function(a,b){return!a||!a[b]?null:f.isFunction(a[b])?a[b]():a[b]},s=function(){throw Error('A "url" property or function must be specified');
+}}).call(this);
diff --git a/core/misc/underscore/underscore-min.js b/core/misc/underscore/underscore-min.js
new file mode 100644
index 0000000..8ec052b
--- /dev/null
+++ b/core/misc/underscore/underscore-min.js
@@ -0,0 +1,5 @@
+//     Underscore.js 1.4.0
+//     http://underscorejs.org
+//     (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+//     Underscore may be freely distributed under the MIT license.
+(function(){var e=this,t=e._,n={},r=Array.prototype,i=Object.prototype,s=Function.prototype,o=r.push,u=r.slice,a=r.concat,f=r.unshift,l=i.toString,c=i.hasOwnProperty,h=r.forEach,p=r.map,d=r.reduce,v=r.reduceRight,m=r.filter,g=r.every,y=r.some,b=r.indexOf,w=r.lastIndexOf,E=Array.isArray,S=Object.keys,x=s.bind,T=function(e){if(e instanceof T)return e;if(!(this instanceof T))return new T(e);this._wrapped=e};typeof exports!="undefined"?(typeof module!="undefined"&&module.exports&&(exports=module.exports=T),exports._=T):e._=T,T.VERSION="1.4.0";var N=T.each=T.forEach=function(e,t,r){if(h&&e.forEach===h)e.forEach(t,r);else if(e.length===+e.length){for(var i=0,s=e.length;i<s;i++)if(t.call(r,e[i],i,e)===n)return}else for(var o in e)if(T.has(e,o)&&t.call(r,e[o],o,e)===n)return};T.map=T.collect=function(e,t,n){var r=[];return p&&e.map===p?e.map(t,n):(N(e,function(e,i,s){r[r.length]=t.call(n,e,i,s)}),r)},T.reduce=T.foldl=T.inject=function(e,t,n,r){var i=arguments.length>2;if(d&&e.reduce===d)return r&&(t=T.bind(t,r)),i?e.reduce(t,n):e.reduce(t);N(e,function(e,s,o){i?n=t.call(r,n,e,s,o):(n=e,i=!0)});if(!i)throw new TypeError("Reduce of empty array with no initial value");return n},T.reduceRight=T.foldr=function(e,t,n,r){var i=arguments.length>2;if(v&&e.reduceRight===v)return r&&(t=T.bind(t,r)),arguments.length>2?e.reduceRight(t,n):e.reduceRight(t);var s=e.length;if(s!==+s){var o=T.keys(e);s=o.length}N(e,function(u,a,f){a=o?o[--s]:--s,i?n=t.call(r,n,e[a],a,f):(n=e[a],i=!0)});if(!i)throw new TypeError("Reduce of empty array with no initial value");return n},T.find=T.detect=function(e,t,n){var r;return C(e,function(e,i,s){if(t.call(n,e,i,s))return r=e,!0}),r},T.filter=T.select=function(e,t,n){var r=[];return m&&e.filter===m?e.filter(t,n):(N(e,function(e,i,s){t.call(n,e,i,s)&&(r[r.length]=e)}),r)},T.reject=function(e,t,n){var r=[];return N(e,function(e,i,s){t.call(n,e,i,s)||(r[r.length]=e)}),r},T.every=T.all=function(e,t,r){t||(t=T.identity);var i=!0;return g&&e.every===g?e.every(t,r):(N(e,function(e,s,o){if(!(i=i&&t.call(r,e,s,o)))return n}),!!i)};var C=T.some=T.any=function(e,t,r){t||(t=T.identity);var i=!1;return y&&e.some===y?e.some(t,r):(N(e,function(e,s,o){if(i||(i=t.call(r,e,s,o)))return n}),!!i)};T.contains=T.include=function(e,t){var n=!1;return b&&e.indexOf===b?e.indexOf(t)!=-1:(n=C(e,function(e){return e===t}),n)},T.invoke=function(e,t){var n=u.call(arguments,2);return T.map(e,function(e){return(T.isFunction(t)?t:e[t]).apply(e,n)})},T.pluck=function(e,t){return T.map(e,function(e){return e[t]})},T.where=function(e,t){return T.isEmpty(t)?[]:T.filter(e,function(e){for(var n in t)if(t[n]!==e[n])return!1;return!0})},T.max=function(e,t,n){if(!t&&T.isArray(e)&&e[0]===+e[0]&&e.length<65535)return Math.max.apply(Math,e);if(!t&&T.isEmpty(e))return-Infinity;var r={computed:-Infinity};return N(e,function(e,i,s){var o=t?t.call(n,e,i,s):e;o>=r.computed&&(r={value:e,computed:o})}),r.value},T.min=function(e,t,n){if(!t&&T.isArray(e)&&e[0]===+e[0]&&e.length<65535)return Math.min.apply(Math,e);if(!t&&T.isEmpty(e))return Infinity;var r={computed:Infinity};return N(e,function(e,i,s){var o=t?t.call(n,e,i,s):e;o<r.computed&&(r={value:e,computed:o})}),r.value},T.shuffle=function(e){var t,n=0,r=[];return N(e,function(e){t=T.random(n++),r[n-1]=r[t],r[t]=e}),r};var k=function(e){return T.isFunction(e)?e:function(t){return t[e]}};T.sortBy=function(e,t,n){var r=k(t);return T.pluck(T.map(e,function(e,t,i){return{value:e,index:t,criteria:r.call(n,e,t,i)}}).sort(function(e,t){var n=e.criteria,r=t.criteria;if(n!==r){if(n>r||n===void 0)return 1;if(n<r||r===void 0)return-1}return e.index<t.index?-1:1}),"value")};var L=function(e,t,n,r){var i={},s=k(t);return N(e,function(t,o){var u=s.call(n,t,o,e);r(i,u,t)}),i};T.groupBy=function(e,t,n){return L(e,t,n,function(e,t,n){(T.has(e,t)?e[t]:e[t]=[]).push(n)})},T.countBy=function(e,t,n){return L(e,t,n,function(e,t,n){T.has(e,t)||(e[t]=0),e[t]++})},T.sortedIndex=function(e,t,n,r){n=n==null?T.identity:k(n);var i=n.call(r,t),s=0,o=e.length;while(s<o){var u=s+o>>>1;n.call(r,e[u])<i?s=u+1:o=u}return s},T.toArray=function(e){return e?e.length===+e.length?u.call(e):T.values(e):[]},T.size=function(e){return e.length===+e.length?e.length:T.keys(e).length},T.first=T.head=T.take=function(e,t,n){return t!=null&&!n?u.call(e,0,t):e[0]},T.initial=function(e,t,n){return u.call(e,0,e.length-(t==null||n?1:t))},T.last=function(e,t,n){return t!=null&&!n?u.call(e,Math.max(e.length-t,0)):e[e.length-1]},T.rest=T.tail=T.drop=function(e,t,n){return u.call(e,t==null||n?1:t)},T.compact=function(e){return T.filter(e,function(e){return!!e})};var A=function(e,t,n){return N(e,function(e){T.isArray(e)?t?o.apply(n,e):A(e,t,n):n.push(e)}),n};T.flatten=function(e,t){return A(e,t,[])},T.without=function(e){return T.difference(e,u.call(arguments,1))},T.uniq=T.unique=function(e,t,n,r){var i=n?T.map(e,n,r):e,s=[],o=[];return N(i,function(n,r){if(t?!r||o[o.length-1]!==n:!T.contains(o,n))o.push(n),s.push(e[r])}),s},T.union=function(){return T.uniq(a.apply(r,arguments))},T.intersection=function(e){var t=u.call(arguments,1);return T.filter(T.uniq(e),function(e){return T.every(t,function(t){return T.indexOf(t,e)>=0})})},T.difference=function(e){var t=a.apply(r,u.call(arguments,1));return T.filter(e,function(e){return!T.contains(t,e)})},T.zip=function(){var e=u.call(arguments),t=T.max(T.pluck(e,"length")),n=new Array(t);for(var r=0;r<t;r++)n[r]=T.pluck(e,""+r);return n},T.object=function(e,t){var n={};for(var r=0,i=e.length;r<i;r++)t?n[e[r]]=t[r]:n[e[r][0]]=e[r][1];return n},T.indexOf=function(e,t,n){var r=0,i=e.length;if(n){if(typeof n!="number")return r=T.sortedIndex(e,t),e[r]===t?r:-1;r=n<0?Math.max(0,i+n):n}if(b&&e.indexOf===b)return e.indexOf(t,n);for(;r<i;r++)if(e[r]===t)return r;return-1},T.lastIndexOf=function(e,t,n){if(w&&e.lastIndexOf===w)return e.lastIndexOf(t,n);var r=n!=null?n:e.length;while(r--)if(e[r]===t)return r;return-1},T.range=function(e,t,n){arguments.length<=1&&(t=e||0,e=0),n=arguments[2]||1;var r=Math.max(Math.ceil((t-e)/n),0),i=0,s=new Array(r);while(i<r)s[i++]=e,e+=n;return s};var O=function(){};T.bind=function(t,n){var r,i;if(t.bind===x&&x)return x.apply(t,u.call(arguments,1));if(!T.isFunction(t))throw new TypeError;return i=u.call(arguments,2),r=function(){if(this instanceof r){O.prototype=t.prototype;var e=new O,s=t.apply(e,i.concat(u.call(arguments)));return Object(s)===s?s:e}return t.apply(n,i.concat(u.call(arguments)))}},T.bindAll=function(e){var t=u.call(arguments,1);return t.length==0&&(t=T.functions(e)),N(t,function(t){e[t]=T.bind(e[t],e)}),e},T.memoize=function(e,t){var n={};return t||(t=T.identity),function(){var r=t.apply(this,arguments);return T.has(n,r)?n[r]:n[r]=e.apply(this,arguments)}},T.delay=function(e,t){var n=u.call(arguments,2);return setTimeout(function(){return e.apply(null,n)},t)},T.defer=function(e){return T.delay.apply(T,[e,1].concat(u.call(arguments,1)))},T.throttle=function(e,t){var n,r,i,s,o,u,a=T.debounce(function(){o=s=!1},t);return function(){n=this,r=arguments;var f=function(){i=null,o&&(u=e.apply(n,r)),a()};return i||(i=setTimeout(f,t)),s?o=!0:(s=!0,u=e.apply(n,r)),a(),u}},T.debounce=function(e,t,n){var r,i;return function(){var s=this,o=arguments,u=function(){r=null,n||(i=e.apply(s,o))},a=n&&!r;return clearTimeout(r),r=setTimeout(u,t),a&&(i=e.apply(s,o)),i}},T.once=function(e){var t=!1,n;return function(){return t?n:(t=!0,n=e.apply(this,arguments),e=null,n)}},T.wrap=function(e,t){return function(){var n=[e];return o.apply(n,arguments),t.apply(this,n)}},T.compose=function(){var e=arguments;return function(){var t=arguments;for(var n=e.length-1;n>=0;n--)t=[e[n].apply(this,t)];return t[0]}},T.after=function(e,t){return e<=0?t():function(){if(--e<1)return t.apply(this,arguments)}},T.keys=S||function(e){if(e!==Object(e))throw new TypeError("Invalid object");var t=[];for(var n in e)T.has(e,n)&&(t[t.length]=n);return t},T.values=function(e){var t=[];for(var n in e)T.has(e,n)&&t.push(e[n]);return t},T.pairs=function(e){var t=[];for(var n in e)T.has(e,n)&&t.push([n,e[n]]);return t},T.invert=function(e){var t={};for(var n in e)T.has(e,n)&&(t[e[n]]=n);return t},T.functions=T.methods=function(e){var t=[];for(var n in e)T.isFunction(e[n])&&t.push(n);return t.sort()},T.extend=function(e){return N(u.call(arguments,1),function(t){for(var n in t)e[n]=t[n]}),e},T.pick=function(e){var t={},n=a.apply(r,u.call(arguments,1));return N(n,function(n){n in e&&(t[n]=e[n])}),t},T.omit=function(e){var t={},n=a.apply(r,u.call(arguments,1));for(var i in e)T.contains(n,i)||(t[i]=e[i]);return t},T.defaults=function(e){return N(u.call(arguments,1),function(t){for(var n in t)e[n]==null&&(e[n]=t[n])}),e},T.clone=function(e){return T.isObject(e)?T.isArray(e)?e.slice():T.extend({},e):e},T.tap=function(e,t){return t(e),e};var M=function(e,t,n,r){if(e===t)return e!==0||1/e==1/t;if(e==null||t==null)return e===t;e instanceof T&&(e=e._wrapped),t instanceof T&&(t=t._wrapped);var i=l.call(e);if(i!=l.call(t))return!1;switch(i){case"[object String]":return e==String(t);case"[object Number]":return e!=+e?t!=+t:e==0?1/e==1/t:e==+t;case"[object Date]":case"[object Boolean]":return+e==+t;case"[object RegExp]":return e.source==t.source&&e.global==t.global&&e.multiline==t.multiline&&e.ignoreCase==t.ignoreCase}if(typeof e!="object"||typeof t!="object")return!1;var s=n.length;while(s--)if(n[s]==e)return r[s]==t;n.push(e),r.push(t);var o=0,u=!0;if(i=="[object Array]"){o=e.length,u=o==t.length;if(u)while(o--)if(!(u=M(e[o],t[o],n,r)))break}else{var a=e.constructor,f=t.constructor;if(a!==f&&!(T.isFunction(a)&&a instanceof a&&T.isFunction(f)&&f instanceof f))return!1;for(var c in e)if(T.has(e,c)){o++;if(!(u=T.has(t,c)&&M(e[c],t[c],n,r)))break}if(u){for(c in t)if(T.has(t,c)&&!(o--))break;u=!o}}return n.pop(),r.pop(),u};T.isEqual=function(e,t){return M(e,t,[],[])},T.isEmpty=function(e){if(e==null)return!0;if(T.isArray(e)||T.isString(e))return e.length===0;for(var t in e)if(T.has(e,t))return!1;return!0},T.isElement=function(e){return!!e&&e.nodeType===1},T.isArray=E||function(e){return l.call(e)=="[object Array]"},T.isObject=function(e){return e===Object(e)},N(["Arguments","Function","String","Number","Date","RegExp"],function(e){T["is"+e]=function(t){return l.call(t)=="[object "+e+"]"}}),T.isArguments(arguments)||(T.isArguments=function(e){return!!e&&!!T.has(e,"callee")}),typeof /./!="function"&&(T.isFunction=function(e){return typeof e=="function"}),T.isFinite=function(e){return T.isNumber(e)&&isFinite(e)},T.isNaN=function(e){return T.isNumber(e)&&e!=+e},T.isBoolean=function(e){return e===!0||e===!1||l.call(e)=="[object Boolean]"},T.isNull=function(e){return e===null},T.isUndefined=function(e){return e===void 0},T.has=function(e,t){return c.call(e,t)},T.noConflict=function(){return e._=t,this},T.identity=function(e){return e},T.times=function(e,t,n){for(var r=0;r<e;r++)t.call(n,r)},T.random=function(e,t){return t==null&&(t=e,e=0),e+(0|Math.random()*(t-e+1))};var _={escape:{"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#x27;","/":"&#x2F;"}};_.unescape=T.invert(_.escape);var D={escape:new RegExp("["+T.keys(_.escape).join("")+"]","g"),unescape:new RegExp("("+T.keys(_.unescape).join("|")+")","g")};T.each(["escape","unescape"],function(e){T[e]=function(t){return t==null?"":(""+t).replace(D[e],function(t){return _[e][t]})}}),T.result=function(e,t){if(e==null)return null;var n=e[t];return T.isFunction(n)?n.call(e):n},T.mixin=function(e){N(T.functions(e),function(t){var n=T[t]=e[t];T.prototype[t]=function(){var e=[this._wrapped];return o.apply(e,arguments),F.call(this,n.apply(T,e))}})};var P=0;T.uniqueId=function(e){var t=P++;return e?e+t:t},T.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var H=/(.)^/,B={"'":"'","\\":"\\","\r":"r","\n":"n","	":"t","\u2028":"u2028","\u2029":"u2029"},j=/\\|'|\r|\n|\t|\u2028|\u2029/g;T.template=function(e,t,n){n=T.defaults({},n,T.templateSettings);var r=new RegExp([(n.escape||H).source,(n.interpolate||H).source,(n.evaluate||H).source].join("|")+"|$","g"),i=0,s="__p+='";e.replace(r,function(t,n,r,o,u){s+=e.slice(i,u).replace(j,function(e){return"\\"+B[e]}),s+=n?"'+\n((__t=("+n+"))==null?'':_.escape(__t))+\n'":r?"'+\n((__t=("+r+"))==null?'':__t)+\n'":o?"';\n"+o+"\n__p+='":"",i=u+t.length}),s+="';\n",n.variable||(s="with(obj||{}){\n"+s+"}\n"),s="var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};\n"+s+"return __p;\n";try{var o=new Function(n.variable||"obj","_",s)}catch(u){throw u.source=s,u}if(t)return o(t,T);var a=function(e){return o.call(this,e,T)};return a.source="function("+(n.variable||"obj")+"){\n"+s+"}",a},T.chain=function(e){return T(e).chain()};var F=function(e){return this._chain?T(e).chain():e};T.mixin(T),N(["pop","push","reverse","shift","sort","splice","unshift"],function(e){var t=r[e];T.prototype[e]=function(){var n=this._wrapped;return t.apply(n,arguments),(e=="shift"||e=="splice")&&n.length===0&&delete n[0],F.call(this,n)}}),N(["concat","join","slice"],function(e){var t=r[e];T.prototype[e]=function(){return F.call(this,t.apply(this._wrapped,arguments))}}),T.extend(T.prototype,{chain:function(){return this._chain=!0,this},value:function(){return this._wrapped}})}).call(this);
\ No newline at end of file
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index bfa91db..7bb33c4 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -1819,6 +1819,29 @@ function system_library_info() {
     ),
   );
 
+  // Underscore
+  $libraries['underscore'] = array(
+    'title' => 'Underscore.js',
+    'website' => 'http://underscorejs.org/',
+    'version' => '1.4.0',
+    'js' => array(
+      'core/misc/underscore/underscore-min.js' => array('group' => JS_LIBRARY),
+    ),
+  );
+
+  // Backbone
+  $libraries['backbone'] = array(
+    'title' => 'Backbone.js',
+    'website' => 'http://backbonejs.org/',
+    'version' => '0.9.2',
+    'js' => array(
+      'core/misc/backbone/backbone-min.js' => array('group' => JS_LIBRARY),
+    ),
+    'dependencies' => array(
+      array('system', 'underscore'),
+    ),
+  );
+
   // Cookie.
   $libraries['jquery.cookie'] = array(
     'title' => 'Cookie',
-- 
1.7.10.4