title: Using underscore to sort a collection based on date
body: <p>I have a backbone collection which has a bunch of models with date attributes associated with to them. I want to sort them based on their dates. So the latest dates first and so on.
  Whats the best way to go around this.</p>
  
  <p>The dates are formatted like this,  a basic date object. Date {Mon Mar 05 2012 23:30:00 GMT-0500 (EST)}</p>
  
  <p>Thanks</p>