title: ng-drag events not triggered
body: <pre><code>&lt;div ng-drag="true" ng-drag-start="onDragStart($data, $event)"&gt;
        Draggable 
  &lt;/div&gt; 
  </code></pre>
  
  <p>The div is now draggable but none of the drag events are being fired i.e </p>
  
  <pre><code>ng-drag-start or ng-drag-move  or ng-drag-stop or ng-drag-success
  </code></pre>
  
  <p>I do not have a drop area as I want the div to go back to its original position where it was dragged from. </p>
  
  <p>What could be the reason? How do I fix this?</p>