title: What does the `this._super(controller,model)` mean in an Ember Router?
body: <p>I have seen in EmberJS code and discussion {no references supplied} the following:</p>
  
  <h2>Code</h2>
  
  <p>route.js</p>
  
  <pre><code>setupController: function (controller, model) {
      this._super(controller,model);
      // More code
  },
  </code></pre>
  
  <h2>Questions</h2>
  
  <p>What is the call to <code>this._super(controller,model);</code> doing here?</p>
  
  <p>When should I need to use this type of call?</p>
  
  <p>Just trying to learn here as my nose bleeds from the Ember learning curve.</p>