[view/transform][xs]: move div with css class down one level so that it works in situations even where we pass div in.

src/view.transform.js

@@ -10,8 +10,8 @@ this.recline.View = this.recline.View || {};
 //
 // View (Dialog) for doing data transformations
 my.Transform = Backbone.View.extend({
-  className: 'recline-transform',
   template: ' \
+    <div class="recline-transform"> \
       <div class="script"> \
         <h2> \
           Transform Script \
@@ -26,6 +26,7 @@ my.Transform = Backbone.View.extend({
         <h3>Preview</h3> \
         <div class="expression-preview-container"></div> \
       </div> \
+    </div> \
   ',
 
   events: {