Make editor display immediately, and with a white background

cms/static/coffee/src/views/module_edit.coffee

@@ -14,10 +14,13 @@ class CMS.Views.ModuleEdit extends Backbone.View
 
   $component_editor: => @$el.find('.component-editor')
 
-  loadModules: ->
-      @module = XModule.loadModule(@$el.find('.xmodule_edit'))
+  loadDisplay: ->
       XModule.loadModule(@$el.find('.xmodule_display'))
 
+  loadEdit: ->
+    if !@module
+      @module = XModule.loadModule(@$el.find('.xmodule_edit'))
+
   metadata: ->
     # cdodge: package up metadata which is separated into a number of input fields
     # there's probably a better way to do this, but at least this lets me continue to move onwards
@@ -45,7 +48,7 @@ class CMS.Views.ModuleEdit extends Backbone.View
   render: ->
     if @model.id
       @$el.load("/preview_component/#{@model.id}", =>
-        @loadModules()
+        @loadDisplay()
         @delegateEvents()
       )
 
@@ -71,3 +74,4 @@ class CMS.Views.ModuleEdit extends Backbone.View
     event.preventDefault()
     @$el.addClass('editing')
     @$component_editor().slideDown(150)
+    @loadEdit()