title: Bind backbone event to a multiple class selector
body: <p>I can't get the following event to attach to my  element.</p>
  
  <pre><code>events = {
     "change .date-selector .date-range": "dateRangeSelectionChanged"
  }
  </code></pre>
  
  <p>Is this supported at all in Backbone.js? Or am I using a wrong syntax?</p>