title: How to return JsonModel by default in ZF2?
body: <p>Default ViewModel is not mandatory, I can return from controller just the array of data:</p>
  
  <pre><code>public function someAction()
  {
    //...
    return array('result'=&gt;$data);
  }
  </code></pre>
  
  <p>But I can`t use this approach with Json. What should I do in dispatch event to wrap the results in JsonModel (for the appropriate accept header)?</p>