title: Marionette.CompositeView, how to pass parameters to Marionette.ItemView
body: <p>I would like to access the app.vent from Marionette.ItemView.</p>
  
  <p>Maybe an option could be to pass a parameter (<code>app.vent</code>) to <code>Marionette.ItemView</code> from <code>Marionette.CompositeView</code>.</p>
  
  <p>Here my code:</p>
  
  <pre><code>// view/compositeView.js
  define([
      'marionette',
      'views/item'
  ], function (Marionette, itemView) {
      var ListView = Marionette.CompositeView.extend({ 
          itemView: itemView
      });
  });
  </code></pre>
  
  <p>Any ideas?</p>
  
  <p>P.S.:<br>
  I cannot access the app from itemView because there is a problem of circular dependency.</p>
  
  <pre><code>app -&gt; view/compositeView -&gt; view/itemView
  </code></pre>