title: Detect drop target with HammerJS
body: <p>I'm using HammerJS to abstract drag, scale and rotate for desktop and mobile. All I'm missing  is drop. How do I define an element as a drop target that throws an event when another element is dragged over or dropped onto it? Something like jQueryUI's <a href="http://api.jqueryui.com/droppable/" rel="nofollow">droppable</a> that will work with HammerJS?</p>
  
  <p>Thanks.</p>