diff --git a/wp-admin/js/customize-controls.js b/wp-admin/js/customize-controls.js
index 7d41d213ba..d53d951d92 100644
--- a/wp-admin/js/customize-controls.js
+++ b/wp-admin/js/customize-controls.js
@@ -1,8 +1,6 @@
 /* globals _wpCustomizeHeader, _wpMediaViewsL10n */
 (function( exports, $ ){
-	var bubbleChildValueChanges, Container, focus, isKeydownButNotEnterEvent, areElementListsEqual, prioritySort, api = wp.customize;
-
-	// @todo Move private helper functions to wp.customize.utils so they can be unit tested
+	var Container, focus, api = wp.customize;
 
 	/**
 	 * @class
@@ -32,13 +30,18 @@
 		}
 	});
 
+	/**
+	 * Utility function namespace
+	 */
+	api.utils = {};
+
 	/**
 	 * Watch all changes to Value properties, and bubble changes to parent Values instance
 	 *
 	 * @param {wp.customize.Class} instance
 	 * @param {Array} properties  The names of the Value instances to watch.
 	 */
-	bubbleChildValueChanges = function ( instance, properties ) {
+	api.utils.bubbleChildValueChanges = function ( instance, properties ) {
 		$.each( properties, function ( i, key ) {
 			instance[ key ].bind( function ( to, from ) {
 				if ( instance.parent && to !== from ) {
@@ -86,7 +89,7 @@
 	 * @param {(wp.customize.Panel|wp.customize.Section|wp.customize.Control)} b
 	 * @returns {Number}
 	 */
-	prioritySort = function ( a, b ) {
+	api.utils.prioritySort = function ( a, b ) {
 		if ( a.priority() === b.priority() && typeof a.params.instanceNumber === 'number' && typeof b.params.instanceNumber === 'number' ) {
 			return a.params.instanceNumber - b.params.instanceNumber;
 		} else {
@@ -100,7 +103,7 @@
 	 * @param {jQuery.Event} event
 	 * @returns {boolean}
 	 */
-	isKeydownButNotEnterEvent = function ( event ) {
+	api.utils.isKeydownButNotEnterEvent = function ( event ) {
 		return ( 'keydown' === event.type && 13 !== event.which );
 	};
 
@@ -111,7 +114,7 @@
 	 * @param {Array|jQuery} listB
 	 * @returns {boolean}
 	 */
-	areElementListsEqual = function ( listA, listB ) {
+	api.utils.areElementListsEqual = function ( listA, listB ) {
 		var equal = (
 			listA.length === listB.length && // if lists are different lengths, then naturally they are not equal
 			-1 === _.map( // are there any false values in the list returned by map?
@@ -142,7 +145,7 @@
 			container.container = $( container.params.content );
 
 			container.deferred = {
-				ready: new $.Deferred()
+				embedded: new $.Deferred()
 			};
 			container.priority = new api.Value();
 			container.active = new api.Value();
@@ -155,22 +158,20 @@
 				args = $.extend( {}, container.defaultActiveArguments, args );
 				active = ( active && container.isContextuallyActive() );
 				container.onChangeActive( active, args );
-				// @todo trigger 'activated' and 'deactivated' events based on the expanded param?
 			});
 			container.expanded.bind( function ( expanded ) {
 				var args = container.expandedArgumentsQueue.shift();
 				args = $.extend( {}, container.defaultExpandedArguments, args );
 				container.onChangeExpanded( expanded, args );
-				// @todo trigger 'expanded' and 'collapsed' events based on the expanded param?
 			});
 
 			container.attachEvents();
 
-			bubbleChildValueChanges( container, [ 'priority', 'active' ] );
+			api.utils.bubbleChildValueChanges( container, [ 'priority', 'active' ] );
 
 			container.priority.set( isNaN( container.params.priority ) ? 100 : container.params.priority );
 			container.active.set( container.params.active );
-			container.expanded.set( false ); // @todo True if deeplinking?
+			container.expanded.set( false );
 		},
 
 		/**
@@ -193,7 +194,7 @@
 					children.push( child );
 				}
 			} );
-			children.sort( prioritySort );
+			children.sort( api.utils.prioritySort );
 			return children;
 		},
 
@@ -202,7 +203,7 @@
 		 * @abstract
 		 */
 		isContextuallyActive: function () {
-			throw new Error( 'Must override with subclass.' );
+			throw new Error( 'Container.isContextuallyActive() must be overridden in a subclass.' );
 		},
 
 		/**
@@ -335,10 +336,10 @@
 				$( section.container ).toggleClass( 'control-subsection', !! id );
 			});
 			section.panel.set( section.params.panel || '' );
-			bubbleChildValueChanges( section, [ 'panel' ] );
+			api.utils.bubbleChildValueChanges( section, [ 'panel' ] );
 
 			section.embed();
-			section.deferred.ready.done( function () {
+			section.deferred.embedded.done( function () {
 				section.ready();
 			});
 		},
@@ -356,12 +357,12 @@
 					// The panel has been supplied, so wait until the panel object is registered
 					api.panel( panelId, function ( panel ) {
 						// The panel has been registered, wait for it to become ready/initialized
-						panel.deferred.ready.done( function () {
+						panel.deferred.embedded.done( function () {
 							parentContainer = panel.container.find( 'ul:first' );
 							if ( ! section.container.parent().is( parentContainer ) ) {
 								parentContainer.append( section.container );
 							}
-							section.deferred.ready.resolve(); // @todo Better to use `embedded` instead of `ready`
+							section.deferred.embedded.resolve();
 						});
 					} );
 				} else {
@@ -370,7 +371,7 @@
 					if ( ! section.container.parent().is( parentContainer ) ) {
 						parentContainer.append( section.container );
 					}
-					section.deferred.ready.resolve();
+					section.deferred.embedded.resolve();
 				}
 			};
 			section.panel.bind( inject );
@@ -385,7 +386,7 @@
 
 			// Expand/Collapse accordion sections on click.
 			section.container.find( '.accordion-section-title' ).on( 'click keydown', function( event ) {
-				if ( isKeydownButNotEnterEvent( event ) ) {
+				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
 				event.preventDefault(); // Keep this AFTER the key filter above
@@ -479,7 +480,7 @@
 			var panel = this;
 			Container.prototype.initialize.call( panel, id, options );
 			panel.embed();
-			panel.deferred.ready.done( function () {
+			panel.deferred.embedded.done( function () {
 				panel.ready();
 			});
 		},
@@ -494,7 +495,7 @@
 			if ( ! panel.container.parent().is( parentContainer ) ) {
 				parentContainer.append( panel.container );
 			}
-			panel.deferred.ready.resolve();
+			panel.deferred.embedded.resolve();
 		},
 
 		/**
@@ -505,7 +506,7 @@
 
 			// Expand/Collapse accordion sections on click.
 			panel.container.find( '.accordion-section-title' ).on( 'click keydown', function( event ) {
-				if ( isKeydownButNotEnterEvent( event ) ) {
+				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
 				event.preventDefault(); // Keep this AFTER the key filter above
@@ -518,7 +519,7 @@
 			meta = panel.container.find( '.panel-meta:first' );
 
 			meta.find( '> .accordion-section-title' ).on( 'click keydown', function( event ) {
-				if ( isKeydownButNotEnterEvent( event ) ) {
+				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
 				event.preventDefault(); // Keep this AFTER the key filter above
@@ -676,7 +677,7 @@
 			control.container = control.params.content ? $( control.params.content ) : $( control.selector );
 
 			control.deferred = {
-				ready: new $.Deferred()
+				embedded: new $.Deferred()
 			};
 			control.section = new api.Value();
 			control.priority = new api.Value();
@@ -720,7 +721,7 @@
 			control.priority.set( isNaN( control.params.priority ) ? 10 : control.params.priority );
 			control.active.set( control.params.active );
 
-			bubbleChildValueChanges( control, [ 'section', 'priority', 'active' ] );
+			api.utils.bubbleChildValueChanges( control, [ 'section', 'priority', 'active' ] );
 
 			// Associate this control with its settings when they are created
 			settings = $.map( control.params.settings, function( value ) {
@@ -739,7 +740,7 @@
 				control.embed();
 			}) );
 
-			control.deferred.ready.done( function () {
+			control.deferred.embedded.done( function () {
 				control.ready();
 			});
 		},
@@ -760,13 +761,13 @@
 				// Wait for the section to be registered
 				api.section( sectionId, function ( section ) {
 					// Wait for the section to be ready/initialized
-					section.deferred.ready.done( function () {
+					section.deferred.embedded.done( function () {
 						parentContainer = section.container.find( 'ul:first' );
 						if ( ! control.container.parent().is( parentContainer ) ) {
 							parentContainer.append( control.container );
 							control.renderContent();
 						}
-						control.deferred.ready.resolve(); // @todo Better to use `embedded` instead of `ready`
+						control.deferred.embedded.resolve();
 					});
 				});
 			};
@@ -852,7 +853,7 @@
 
 			// Support the .dropdown class to open/close complex elements
 			this.container.on( 'click keydown', '.dropdown', function( event ) {
-				if ( isKeydownButNotEnterEvent( event ) ) {
+				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
 
@@ -935,7 +936,7 @@
 		 * When the control's DOM structure is ready,
 		 * set up internal event bindings.
 		 */
- 		ready: function() {
+		ready: function() {
 			var control = this;
 			// Shortcut so that we don't have to use _.bind every time we add a callback.
 			_.bindAll( control, 'restoreDefault', 'removeFile', 'openFrame', 'select' );
@@ -954,9 +955,9 @@
 		 * Open the media modal.
 		 */
 		openFrame: function( event ) {
-			if ( event.type === 'keydown' &&  13 !== event.which ) { // enter
+			if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 				return;
- 			}
+			}
 
 			event.preventDefault();
 
@@ -984,11 +985,11 @@
 					text: this.params.button_labels.frame_button
 				},
 				multiple: false
- 			});
+			});
 
 			// When a file is selected, run a callback.
 			this.frame.on( 'select', this.select );
- 		},
+		},
 
 		/**
 		 * Callback handler for when an attachment is selected in the media modal.
@@ -1008,7 +1009,7 @@
 		 * Reset the setting to the default value.
 		 */
 		restoreDefault: function( event ) {
-			if ( event.type === 'keydown' && 13 !== event.which ) { // enter
+			if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 				return;
 			}
 			event.preventDefault();
@@ -1023,22 +1024,22 @@
 		 * @param {object} event jQuery Event object
 		 */
 		removeFile: function( event ) {
-			if ( event.type === 'keydown' && 13 !== event.which ) { // enter
+			if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 				return;
- 			}
+			}
 			event.preventDefault();
 
 			this.params.attachment = {};
 			this.setting( '' );
 			this.renderContent(); // Not bound to setting change when emptying.
- 		},
+		},
 
 		// @deprecated
 		success: function() {},
 
 		// @deprecated
 		removerVisibility: function() {}
- 	});
+	});
 
 	/**
 	 * A control for uploading images.
@@ -1742,8 +1743,9 @@
 		api.l10n = window._wpCustomizeControlsL10n;
 
 		// Check if we can run the Customizer.
-		if ( ! api.settings )
+		if ( ! api.settings ) {
 			return;
+		}
 
 		// Redirect to the fallback preview if any incompatibilities are found.
 		if ( ! $.support.postMessage || ( ! $.support.cors && api.settings.isCrossDomain ) )
@@ -1768,7 +1770,7 @@
 
 		// Expand/Collapse the main customizer customize info
 		$( '#customize-info' ).find( '> .accordion-section-title' ).on( 'click keydown', function( event ) {
-			if ( isKeydownButNotEnterEvent( event ) ) {
+			if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 				return;
 			}
 			event.preventDefault(); // Keep this AFTER the key filter above
@@ -1930,7 +1932,7 @@
 			if ( id && api[ type ]( id ) ) {
 				instance = api[ type ]( id );
 				// Wait until the element is embedded in the DOM
-				instance.deferred.ready.done( function () {
+				instance.deferred.embedded.done( function () {
 					// Wait until the preview has activated and so active panels, sections, controls have been set
 					api.previewer.deferred.active.done( function () {
 						instance.focus();
@@ -1956,7 +1958,7 @@
 					sectionContainers = _.pluck( sections, 'container' );
 				rootNodes.push( panel );
 				appendContainer = panel.container.find( 'ul:first' );
-				if ( ! areElementListsEqual( sectionContainers, appendContainer.children( '[id]' ) ) ) {
+				if ( ! api.utils.areElementListsEqual( sectionContainers, appendContainer.children( '[id]' ) ) ) {
 					_( sections ).each( function ( section ) {
 						appendContainer.append( section.container );
 					} );
@@ -1972,7 +1974,7 @@
 					rootNodes.push( section );
 				}
 				appendContainer = section.container.find( 'ul:first' );
-				if ( ! areElementListsEqual( controlContainers, appendContainer.children( '[id]' ) ) ) {
+				if ( ! api.utils.areElementListsEqual( controlContainers, appendContainer.children( '[id]' ) ) ) {
 					_( controls ).each( function ( control ) {
 						appendContainer.append( control.container );
 					} );
@@ -1981,10 +1983,10 @@
 			} );
 
 			// Sort the root panels and sections
-			rootNodes.sort( prioritySort );
+			rootNodes.sort( api.utils.prioritySort );
 			rootContainers = _.pluck( rootNodes, 'container' );
 			appendContainer = $( '#customize-theme-controls' ).children( 'ul' ); // @todo This should be defined elsewhere, and to be configurable
-			if ( ! areElementListsEqual( rootContainers, appendContainer.children() ) ) {
+			if ( ! api.utils.areElementListsEqual( rootContainers, appendContainer.children() ) ) {
 				_( rootNodes ).each( function ( rootNode ) {
 					appendContainer.append( rootNode.container );
 				} );
@@ -2080,7 +2082,7 @@
 
 		// Go back to the top-level Customizer accordion.
 		$( '#customize-header-actions' ).on( 'click keydown', '.control-panel-back', function( event ) {
-			if ( isKeydownButNotEnterEvent( event ) ) {
+			if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 				return;
 			}
 
@@ -2099,7 +2101,7 @@
 		});
 
 		$('.collapse-sidebar').on( 'click keydown', function( event ) {
-			if ( isKeydownButNotEnterEvent( event ) ) {
+			if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 				return;
 			}
 
diff --git a/wp-admin/js/customize-controls.min.js b/wp-admin/js/customize-controls.min.js
index a3c1d2faab..b7a88ff1a2 100644
--- a/wp-admin/js/customize-controls.min.js
+++ b/wp-admin/js/customize-controls.min.js
@@ -1 +1 @@
-!function(a,b){var c,d,e,f,g,h,i=wp.customize;i.Setting=i.Value.extend({initialize:function(a,b,c){i.Value.prototype.initialize.call(this,b,c),this.id=a,this.transport=this.transport||"refresh",this.bind(this.preview)},preview:function(){switch(this.transport){case"refresh":return this.previewer.refresh();case"postMessage":return this.previewer.send("setting",[this.id,this()])}}}),c=function(a,c){b.each(c,function(b,c){a[c].bind(function(b,c){a.parent&&b!==c&&a.parent.trigger("change",a)})})},e=function(a){var b,c,d;b=this,a=a||{},d=function(){b.container.find(":focusable:first").focus(),b.container[0].scrollIntoView(!0)},a.completeCallback?(c=a.completeCallback,a.completeCallback=function(){d(),c()}):a.completeCallback=d,b.expand?b.expand(a):a.completeCallback()},h=function(a,b){return a.priority()===b.priority()&&"number"==typeof a.params.instanceNumber&&"number"==typeof b.params.instanceNumber?a.params.instanceNumber-b.params.instanceNumber:a.priority()-b.priority()},f=function(a){return"keydown"===a.type&&13!==a.which},g=function(a,c){var d=a.length===c.length&&-1===_.map(_.zip(a,c),function(a){return b(a[0]).is(a[1])}).indexOf(!1);return d},d=i.Class.extend({defaultActiveArguments:{duration:"fast",completeCallback:b.noop},defaultExpandedArguments:{duration:"fast",completeCallback:b.noop},initialize:function(a,d){var e=this;e.id=a,e.params={},b.extend(e,d||{}),e.container=b(e.params.content),e.deferred={ready:new b.Deferred},e.priority=new i.Value,e.active=new i.Value,e.activeArgumentsQueue=[],e.expanded=new i.Value,e.expandedArgumentsQueue=[],e.active.bind(function(a){var c=e.activeArgumentsQueue.shift();c=b.extend({},e.defaultActiveArguments,c),a=a&&e.isContextuallyActive(),e.onChangeActive(a,c)}),e.expanded.bind(function(a){var c=e.expandedArgumentsQueue.shift();c=b.extend({},e.defaultExpandedArguments,c),e.onChangeExpanded(a,c)}),e.attachEvents(),c(e,["priority","active"]),e.priority.set(isNaN(e.params.priority)?100:e.params.priority),e.active.set(e.params.active),e.expanded.set(!1)},ready:function(){},_children:function(a,b){var c=this,d=[];return i[b].each(function(b){b[a].get()===c.id&&d.push(b)}),d.sort(h),d},isContextuallyActive:function(){throw new Error("Must override with subclass.")},onChangeActive:function(a,c){var d="resolved"===i.previewer.deferred.active.state()?c.duration:0;b.contains(document,this.container)?a?this.container.stop(!0,!0).slideDown(d,c.completeCallback):this.container.stop(!0,!0).slideUp(d,c.completeCallback):(this.container.toggle(a),c.completeCallback())},_toggleActive:function(a,b){var c=this;return b=b||{},a&&this.active.get()||!a&&!this.active.get()?(b.unchanged=!0,c.onChangeActive(c.active.get(),b),!1):(b.unchanged=!1,this.activeArgumentsQueue.push(b),this.active.set(a),!0)},activate:function(a){return this._toggleActive(!0,a)},deactivate:function(a){return this._toggleActive(!1,a)},onChangeExpanded:function(){throw new Error("Must override with subclass.")},_toggleExpanded:function(a,b){var c=this;return b=b||{},a&&this.expanded.get()||!a&&!this.expanded.get()?(b.unchanged=!0,c.onChangeExpanded(c.expanded.get(),b),!1):(b.unchanged=!1,this.expandedArgumentsQueue.push(b),this.expanded.set(a),!0)},expand:function(a){return this._toggleExpanded(!0,a)},collapse:function(a){return this._toggleExpanded(!1,a)},focus:e}),i.Section=d.extend({initialize:function(a,e){var f=this;d.prototype.initialize.call(f,a,e),f.id=a,f.panel=new i.Value,f.panel.bind(function(a){b(f.container).toggleClass("control-subsection",!!a)}),f.panel.set(f.params.panel||""),c(f,["panel"]),f.embed(),f.deferred.ready.done(function(){f.ready()})},embed:function(){var a,c=this;a=function(a){var d;a?i.panel(a,function(a){a.deferred.ready.done(function(){d=a.container.find("ul:first"),c.container.parent().is(d)||d.append(c.container),c.deferred.ready.resolve()})}):(d=b("#customize-theme-controls").children("ul"),c.container.parent().is(d)||d.append(c.container),c.deferred.ready.resolve())},c.panel.bind(a),a(c.panel.get())},attachEvents:function(){var a=this;a.container.find(".accordion-section-title").on("click keydown",function(b){f(b)||(b.preventDefault(),a.expanded()?a.collapse():a.expand())})},isContextuallyActive:function(){var a=this,b=a.controls(),c=0;return _(b).each(function(a){a.active()&&(c+=1)}),0!==c},controls:function(){return this._children("section","control")},onChangeExpanded:function(a,b){var c,d=this,e=d.container.find(".accordion-section-content");a?(c=b.unchanged?b.completeCallback:function(){e.stop().slideDown(b.duration,b.completeCallback),d.container.addClass("open")},b.allowMultiple||i.section.each(function(a){a!==d&&a.collapse({duration:b.duration})}),d.panel()?i.panel(d.panel()).expand({duration:b.duration,completeCallback:c}):c()):(d.container.removeClass("open"),e.slideUp(b.duration,b.completeCallback))}}),i.Panel=d.extend({initialize:function(a,b){var c=this;d.prototype.initialize.call(c,a,b),c.embed(),c.deferred.ready.done(function(){c.ready()})},embed:function(){var a=this,c=b("#customize-theme-controls > ul");a.container.parent().is(c)||c.append(a.container),a.deferred.ready.resolve()},attachEvents:function(){var a,b=this;b.container.find(".accordion-section-title").on("click keydown",function(a){f(a)||(a.preventDefault(),b.expanded()||b.expand())}),a=b.container.find(".panel-meta:first"),a.find("> .accordion-section-title").on("click keydown",function(c){if(!f(c)&&(c.preventDefault(),!a.hasClass("cannot-expand"))){var d=a.find(".accordion-section-content:first");a.hasClass("open")?(a.toggleClass("open"),d.slideUp(b.defaultExpandedArguments.duration)):(d.slideDown(b.defaultExpandedArguments.duration),a.toggleClass("open"))}})},sections:function(){return this._children("panel","section")},isContextuallyActive:function(){var a=this,b=a.sections(),c=0;return _(b).each(function(a){a.active()&&a.isContextuallyActive()&&(c+=1)}),0!==c},onChangeExpanded:function(a,b){if(b.unchanged)return void(b.completeCallback&&b.completeCallback());var c,d,e=this,f=e.container.closest(".accordion-section"),g=f.closest(".wp-full-overlay"),h=f.closest(".accordion-container"),j=h.find(".open"),k=g.find("#customize-theme-controls > ul > .accordion-section > .accordion-section-title").add("#customize-info > .accordion-section-title"),l=g.find(".control-panel-back"),m=f.find(".accordion-section-title").first(),n=f.find(".control-panel-content");a?(i.section.each(function(a){a.panel()||a.collapse({duration:0})}),i.panel.each(function(a){e!==a&&a.collapse({duration:0})}),n.show(0,function(){c=n.offset().top,d=h.scrollTop(),n.css("margin-top",45-c-d),f.addClass("current-panel"),g.addClass("in-sub-panel"),h.scrollTop(0),b.completeCallback&&b.completeCallback()}),k.attr("tabindex","-1"),l.attr("tabindex","0"),l.focus()):(j.removeClass("open"),f.removeClass("current-panel"),g.removeClass("in-sub-panel"),n.delay(180).hide(0,function(){n.css("margin-top","inherit"),b.completeCallback&&b.completeCallback()}),k.attr("tabindex","0"),l.attr("tabindex","-1"),m.focus(),h.scrollTop(0))}}),i.Control=i.Class.extend({defaultActiveArguments:{duration:"fast",completeCallback:b.noop},initialize:function(a,d){var e,f,g,h=this;h.params={},b.extend(h,d||{}),h.id=a,h.selector="#customize-control-"+a.replace(/\]/g,"").replace(/\[/g,"-"),h.templateSelector="customize-control-"+h.params.type+"-content",h.container=b(h.params.content?h.params.content:h.selector),h.deferred={ready:new b.Deferred},h.section=new i.Value,h.priority=new i.Value,h.active=new i.Value,h.activeArgumentsQueue=[],h.elements=[],e=h.container.find("[data-customize-setting-link]"),f={},e.each(function(){var a,c=b(this);if(c.is(":radio")){if(a=c.prop("name"),f[a])return;f[a]=!0,c=e.filter('[name="'+a+'"]')}i(c.data("customizeSettingLink"),function(a){var b=new i.Element(c);h.elements.push(b),b.sync(a),b.set(a())})}),h.active.bind(function(a){var 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c,d,f=this,g=f.container.closest(".accordion-section"),h=g.closest(".wp-full-overlay"),i=g.closest(".accordion-container"),j=i.find(".open"),k=h.find("#customize-theme-controls > ul > .accordion-section > .accordion-section-title").add("#customize-info > 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c=h.activeArgumentsQueue.shift();c=b.extend({},h.defaultActiveArguments,c),h.onChangeActive(a,c)}),h.section.set(h.params.section),h.priority.set(isNaN(h.params.priority)?10:h.params.priority),h.active.set(h.params.active),e.utils.bubbleChildValueChanges(h,["section","priority","active"]),g=b.map(h.params.settings,function(a){return a}),e.apply(e,g.concat(function(){var a;h.settings={};for(a in h.params.settings)h.settings[a]=e(h.params.settings[a]);h.setting=h.settings["default"]||null,h.embed()})),h.deferred.embedded.done(function(){h.ready()})},embed:function(){var a,b=this;a=function(a){var c;a&&e.section(a,function(a){a.deferred.embedded.done(function(){c=a.container.find("ul:first"),b.container.parent().is(c)||(c.append(b.container),b.renderContent()),b.deferred.embedded.resolve()})})},b.section.bind(a),a(b.section.get())},ready:function(){},expand:function(a){e.section(this.section()).expand(a)},focus:d,onChangeActive:function(a,c){b.contains(document,this.container)?a?this.container.slideDown(c.duration,c.completeCallback):this.container.slideUp(c.duration,c.completeCallback):(this.container.toggle(a),c.completeCallback())},toggle:function(a){return this.onChangeActive(a,this.defaultActiveArguments)},activate:c.prototype.activate,deactivate:c.prototype.deactivate,dropdownInit:function(){var a=this,b=this.container.find(".dropdown-status"),c=this.params,d=!1,f=function(a){"string"==typeof a&&c.statuses&&c.statuses[a]?b.html(c.statuses[a]).show():b.hide()};this.container.on("click 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a=this.frame.state().get("selection").first().toJSON();this.params.attachment=a,this.setting(a.url)},restoreDefault:function(a){e.utils.isKeydownButNotEnterEvent(a)||(a.preventDefault(),this.params.attachment=this.params.defaultAttachment,this.setting(this.params.defaultAttachment.url))},removeFile:function(a){e.utils.isKeydownButNotEnterEvent(a)||(a.preventDefault(),this.params.attachment={},this.setting(""),this.renderContent())},success:function(){},removerVisibility:function(){}}),e.ImageControl=e.UploadControl.extend({thumbnailSrc:function(){}}),e.HeaderControl=e.Control.extend({ready:function(){this.btnRemove=b("#customize-control-header_image .actions .remove"),this.btnNew=b("#customize-control-header_image .actions .new"),_.bindAll(this,"openMedia","removeImage"),this.btnNew.on("click",this.openMedia),this.btnRemove.on("click",this.removeImage),e.HeaderTool.currentHeader=new e.HeaderTool.ImageModel,new e.HeaderTool.CurrentView({model:e.HeaderTool.currentHeader,el:"#customize-control-header_image .current .container"}),new e.HeaderTool.ChoiceListView({collection:e.HeaderTool.UploadsList=new e.HeaderTool.ChoiceList,el:"#customize-control-header_image .choices .uploaded .list"}),new e.HeaderTool.ChoiceListView({collection:e.HeaderTool.DefaultsList=new e.HeaderTool.DefaultsList,el:"#customize-control-header_image .choices .default .list"}),e.HeaderTool.combinedList=e.HeaderTool.CombinedList=new e.HeaderTool.CombinedList([e.HeaderTool.UploadsList,e.HeaderTool.DefaultsList])},calculateImageSelectOptions:function(a,b){var c,d,f,g,h,i,j=parseInt(_wpCustomizeHeader.data.width,10),k=parseInt(_wpCustomizeHeader.data.height,10),l=!!parseInt(_wpCustomizeHeader.data["flex-width"],10),m=!!parseInt(_wpCustomizeHeader.data["flex-height"],10);return h=a.get("width"),g=a.get("height"),this.headerImage=new e.HeaderTool.ImageModel,this.headerImage.set({themeWidth:j,themeHeight:k,themeFlexWidth:l,themeFlexHeight:m,imageWidth:h,imageHeight:g}),b.set("canSkipCrop",!this.headerImage.shouldBeCropped()),c=j/k,d=h,f=g,d/f>c?(k=f,j=k*c):(j=d,k=j/c),i={handles:!0,keys:!0,instance:!0,persistent:!0,imageWidth:h,imageHeight:g,x1:0,y1:0,x2:j,y2:k},m===!1&&l===!1&&(i.aspectRatio=j+":"+k),m===!1&&(i.maxHeight=k),l===!1&&(i.maxWidth=j),i},openMedia:function(a){var b=_wpMediaViewsL10n;a.preventDefault(),this.frame=wp.media({button:{text:b.selectAndCrop,close:!1},states:[new wp.media.controller.Library({title:b.chooseImage,library:wp.media.query({type:"image"}),multiple:!1,priority:20,suggestedWidth:_wpCustomizeHeader.data.width,suggestedHeight:_wpCustomizeHeader.data.height}),new wp.media.controller.Cropper({imgSelectOptions:this.calculateImageSelectOptions})]}),this.frame.on("select",this.onSelect,this),this.frame.on("cropped",this.onCropped,this),this.frame.on("skippedcrop",this.onSkippedCrop,this),this.frame.open()},onSelect:function(){this.frame.setState("cropper")},onCropped:function(a){var b=a.post_content,c=a.attachment_id,d=a.width,e=a.height;this.setImageFromURL(b,c,d,e)},onSkippedCrop:function(a){var b=a.get("url"),c=a.get("width"),d=a.get("height");this.setImageFromURL(b,a.id,c,d)},setImageFromURL:function(a,b,c,d){var f,g={};g.url=a,g.thumbnail_url=a,g.timestamp=_.now(),b&&(g.attachment_id=b),c&&(g.width=c),d&&(g.height=d),f=new e.HeaderTool.ImageModel({header:g,choice:a.split("/").pop()}),e.HeaderTool.UploadsList.add(f),e.HeaderTool.currentHeader.set(f.toJSON()),f.save(),f.importImage()},removeImage:function(){e.HeaderTool.currentHeader.trigger("hide"),e.HeaderTool.CombinedList.trigger("control:removeImage")}}),e.defaultConstructor=e.Setting,e.control=new e.Values({defaultConstructor:e.Control}),e.section=new e.Values({defaultConstructor:e.Section}),e.panel=new e.Values({defaultConstructor:e.Panel}),e.PreviewFrame=e.Messenger.extend({sensitivity:2e3,initialize:function(a,c){var d=b.Deferred();d.promise(this),this.container=a.container,this.signature=a.signature,b.extend(a,{channel:e.PreviewFrame.uuid()}),e.Messenger.prototype.initialize.call(this,a,c),this.add("previewUrl",a.previewUrl),this.query=b.extend(a.query||{},{customize_messenger_channel:this.channel()}),this.run(d)},run:function(a){var c=this,d=!1,f=!1;this._ready&&this.unbind("ready",this._ready),this._ready=function(){f=!0,d&&a.resolveWith(c)},this.bind("ready",this._ready),this.bind("ready",function(a){if(a){var b={panel:a.activePanels,section:a.activeSections,control:a.activeControls};_(b).each(function(a,b){e[b].each(function(b,c){var d=!(!a||!a[c]);b.active(d)})})}}),this.request=b.ajax(this.previewUrl(),{type:"POST",data:this.query,xhrFields:{withCredentials:!0}}),this.request.fail(function(){a.rejectWith(c,["request failure"])}),this.request.done(function(e){var g,h=c.request.getResponseHeader("Location"),i=c.signature;return h&&h!==c.previewUrl()?void a.rejectWith(c,["redirect",h]):"0"===e?void c.login(a):"-1"===e?void a.rejectWith(c,["cheatin"]):(g=e.lastIndexOf(i),-1===g||g<e.lastIndexOf("</html>")?void a.rejectWith(c,["unsigned"]):(e=e.slice(0,g)+e.slice(g+i.length),c.iframe=b("<iframe 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b,c;b=e.settings.documentTitleTmpl,c=b.replace("%s",a),document.title=c,window!==window.parent&&(window.parent.document.title=document.title)},e.Previewer=e.Messenger.extend({refreshBuffer:250,initialize:function(a,c){var d=this,f=/^https?/;b.extend(this,c||{}),this.deferred={active:b.Deferred()},this.refresh=function(a){var b,c=a.refresh,d=function(){b=null,c.call(a)};return function(){if("number"!=typeof b){if(!a.loading)return d();a.abort()}clearTimeout(b),b=setTimeout(d,a.refreshBuffer)}}(this),this.container=e.ensure(a.container),this.allowedUrls=a.allowedUrls,this.signature=a.signature,a.url=window.location.href,e.Messenger.prototype.initialize.call(this,a),this.add("scheme",this.origin()).link(this.origin).setter(function(a){var b=a.match(f);return b?b[0]:""}),this.add("previewUrl",a.previewUrl).setter(function(a){var c;return/\/wp-admin(\/|$)/.test(a.replace(/[#?].*$/,""))?null:(b.each([a.replace(f,d.scheme()),a],function(a,e){return b.each(d.allowedUrls,function(a,b){var d;return b=b.replace(/\/+$/,""),d=e.replace(b,""),0===e.indexOf(b)&&/^([/#?]|$)/.test(d)?(c=e,!1):void 0}),c?!1:void 0}),c?c:null)}),this.previewUrl.bind(this.refresh),this.scroll=0,this.bind("scroll",function(a){this.scroll=a}),this.bind("url",this.previewUrl),this.bind("documentTitle",function(a){e.setDocumentTitle(a)})},query:function(){},abort:function(){this.loading&&(this.loading.destroy(),delete this.loading)},refresh:function(){var a=this;this.abort(),this.loading=new e.PreviewFrame({url:this.url(),previewUrl:this.previewUrl(),query:this.query()||{},container:this.container,signature:this.signature}),this.loading.done(function(){this.bind("synced",function(){a.preview&&a.preview.destroy(),a.preview=this,delete a.loading,a.targetWindow(this.targetWindow()),a.channel(this.channel()),a.deferred.active.resolve(),a.send("active")}),this.send("sync",{scroll:a.scroll,settings:e.get()})}),this.loading.fail(function(b,c){"redirect"===b&&c&&a.previewUrl(c),"logged 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a,c,d=b(document.body),f=d.children(".wp-full-overlay"),g=b("#customize-info .theme-name.site-title"),h=b(".customize-controls-close"),i=b("#save");b("#customize-controls").on("keydown",function(a){var c=13===a.which,d=b(a.target);c&&(d.is("input:not([type=button])")||d.is("select"))&&a.preventDefault()}),b("#customize-info").find("> .accordion-section-title").on("click keydown",function(a){if(!e.utils.isKeydownButNotEnterEvent(a)){a.preventDefault();var c=b(this).parent(),d=c.find(".accordion-section-content:first");c.hasClass("cannot-expand")||(c.hasClass("open")?(c.toggleClass("open"),d.slideUp(e.Panel.prototype.defaultExpandedArguments.duration)):(d.slideDown(e.Panel.prototype.defaultExpandedArguments.duration),c.toggleClass("open")))}}),e.previewer=new e.Previewer({container:"#customize-preview",form:"#customize-controls",previewUrl:e.settings.url.preview,allowedUrls:e.settings.url.allowed,signature:"WP_CUSTOMIZER_SIGNATURE"},{nonce:e.settings.nonce,query:function(){var a={};return e.each(function(b,c){b._dirty&&(a[c]=b())}),{wp_customize:"on",theme:e.settings.theme.stylesheet,customized:JSON.stringify(a),nonce:this.nonce.preview}},save:function(){var a,c,f=this,g=b.extend(this.query(),{action:"customize_save",nonce:this.nonce.save}),h=e.state("processing");d.addClass("saving"),c=function(){var a=b.post(e.settings.url.ajax,g);e.trigger("save",a),a.always(function(){d.removeClass("saving")}),a.done(function(a){return"0"===a?(f.preview.iframe.hide(),void f.login().done(function(){f.save(),f.preview.iframe.show()})):"-1"===a?void f.cheatin():(e.each(function(a){a._dirty=!1}),void e.trigger("saved"))})},0===h()?c():(a=function(){0===h()&&(e.state.unbind("change",a),c())},e.state.bind("change",a))}}),e.previewer.bind("nonce",function(a){b.extend(this.nonce,a)}),b.each(e.settings.settings,function(a,b){e.create(a,a,b.value,{transport:b.transport,previewer:e.previewer})}),b.each(e.settings.panels,function(a,b){var c,d=e.panelConstructor[b.type]||e.Panel;c=new d(a,{params:b}),e.panel.add(a,c)}),b.each(e.settings.sections,function(a,b){var c,d=e.sectionConstructor[b.type]||e.Section;c=new d(a,{params:b}),e.section.add(a,c)}),b.each(e.settings.controls,function(a,b){var c,d=e.controlConstructor[b.type]||e.Control;c=new d(a,{params:b,previewer:e.previewer}),e.control.add(a,c)}),_.each(["panel","section","control"],function(a){var b,c=e.settings.autofocus[a];c&&e[a](c)&&(b=e[a](c),b.deferred.embedded.done(function(){e.previewer.deferred.active.done(function(){b.focus()})}))}),e.reflowPaneContents=_.bind(function(){var a,c,d,f=[],g=!1;document.activeElement&&(c=b(document.activeElement)),e.panel.each(function(b){var c=b.sections(),d=_.pluck(c,"container");f.push(b),a=b.container.find("ul:first"),e.utils.areElementListsEqual(d,a.children("[id]"))||(_(c).each(function(b){a.append(b.container)}),g=!0)}),e.section.each(function(b){var c=b.controls(),d=_.pluck(c,"container");b.panel()||f.push(b),a=b.container.find("ul:first"),e.utils.areElementListsEqual(d,a.children("[id]"))||(_(c).each(function(b){a.append(b.container)}),g=!0)}),f.sort(e.utils.prioritySort),d=_.pluck(f,"container"),a=b("#customize-theme-controls").children("ul"),e.utils.areElementListsEqual(d,a.children())||(_(f).each(function(b){a.append(b.container)}),g=!0),e.panel.each(function(a){var b=a.active();a.active.callbacks.fireWith(a.active,[b,b])}),e.section.each(function(a){var b=a.active();a.active.callbacks.fireWith(a.active,[b,b])}),g&&c&&c.focus()},e),e.bind("ready",e.reflowPaneContents),e.reflowPaneContents=_.debounce(e.reflowPaneContents,100),b([e.panel,e.section,e.control]).each(function(a,b){b.bind("add",e.reflowPaneContents),b.bind("change",e.reflowPaneContents),b.bind("remove",e.reflowPaneContents)}),e.previewer.previewUrl()?e.previewer.refresh():e.previewer.previewUrl(e.settings.url.home),function(){var a=new e.Values,b=a.create("saved"),c=a.create("activated"),d=a.create("processing");a.bind("change",function(){c()?b()?(i.val(e.l10n.saved).prop("disabled",!0),h.find(".screen-reader-text").text(e.l10n.close)):(i.val(e.l10n.save).prop("disabled",!1),h.find(".screen-reader-text").text(e.l10n.cancel)):(i.val(e.l10n.activate).prop("disabled",!1),h.find(".screen-reader-text").text(e.l10n.cancel))}),b(!0),c(e.settings.theme.active),d(0),e.bind("change",function(){a("saved").set(!1)}),e.bind("saved",function(){a("saved").set(!0),a("activated").set(!0)}),c.bind(function(a){a&&e.trigger("activated")}),e.state=a}(),i.click(function(a){e.previewer.save(),a.preventDefault()}).keydown(function(a){9!==a.which&&(13===a.which&&e.previewer.save(),a.preventDefault())}),b("#customize-header-actions").on("click keydown",".control-panel-back",function(a){e.utils.isKeydownButNotEnterEvent(a)||(a.preventDefault(),e.panel.each(function(a){a.collapse()}))}),h.keydown(function(a){9!==a.which&&(13===a.which&&this.click(),a.preventDefault())}),b(".collapse-sidebar").on("click keydown",function(a){e.utils.isKeydownButNotEnterEvent(a)||(f.toggleClass("collapsed").toggleClass("expanded"),a.preventDefault())}),g.length&&b("#customize-control-blogname input").on("input",function(){g.text(this.value)}),a=new e.Messenger({url:e.settings.url.parent,channel:"loader"}),a.bind("back",function(){h.on("click.customize-controls-close",function(b){b.preventDefault(),a.send("close")})}),b(window).on("beforeunload",function(){return e.state("saved")()?void 0:e.l10n.saveAlert}),b.each(["saved","change"],function(b,c){e.bind(c,function(){a.send(c)})}),e.bind("activated",function(){a.targetWindow()?a.send("activated",e.settings.url.activated):e.settings.url.activated&&(window.location=e.settings.url.activated)}),a.send("ready"),b.each({background_image:{controls:["background_repeat","background_position_x","background_attachment"],callback:function(a){return!!a}},show_on_front:{controls:["page_on_front","page_for_posts"],callback:function(a){return"page"===a}},header_textcolor:{controls:["header_textcolor"],callback:function(a){return"blank"!==a}}},function(a,c){e(a,function(a){b.each(c.controls,function(b,d){e.control(d,function(b){var d=function(a){b.container.toggle(c.callback(a))};d(a.get()),a.bind(d)})})})}),e.control("display_header_text",function(a){var b="";a.elements[0].unsync(e("header_textcolor")),a.element=new e.Element(a.container.find("input")),a.element.set("blank"!==a.setting()),a.element.bind(function(c){c||(b=e("header_textcolor").get()),a.setting.set(c?b:"blank")}),a.setting.bind(function(b){a.element.set("blank"!==b)})}),e.trigger("ready"),c=h,c.focus(),setTimeout(function(){c.focus()},200)}})}(wp,jQuery);
\ No newline at end of file
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 148222f92f..23bba00092 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-beta2-30715';
+$wp_version = '4.1-beta2-30716';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.