title: How to refresh a compositeView Marionette
body: <p>Using Backbone + Marionette, how do I refresh the view in the initialize method of a CompositeView?</p>
  
  <p>This is my code:</p>
  
  <pre><code>View.RegionProofUploadView = Marionette.CompositeView.extend({
          template : regionProofsTpl,
          tagName : "div",
          className : "panel panel-default",
          childView : View.ProofUploadView,
          childViewContainer : "div.pieces",
   });
  </code></pre>