title: Sort Based on Property
body: <p>How can I do something like:</p>
  
  <p><code>sort('object.property')</code></p>
  
  <p>(object is defined as type 'json' in the model)</p>
  
  <p>with Waterline?</p>
  
  <p>Note that I am using the latest stable build 0.9.~ which does not have associations yet.</p>