title: configure always_return_data based on param
body: <p>I'm using django tastypie, and would like to configure always_return_data to trigger true or false based on a patch vars specified (specifically a patch list update).</p>
  
  <pre><code>Example: patch to /api/v1/thisresource
  data: {objects: {[name="john"]}, return_data: false}
  </code></pre>
  
  <p>Is there any way to configure this?</p>