title: Not able to show icon in Trent Richardson datetime picker
body: <p>Here is working example in <a href="http://jsfiddle.net/uDVwx/" rel="nofollow"><strong>jsFiddle</strong></a>. 
  The icon shows only when I am using jQuery UI 1.8.18, if I am using the latest version which is jQuery UI 1.8.21, then the icon won't show up? </p>
  
  <p>Is there a bug or am I missing something? </p>
  
  <p>The Trent datetime picker documentation is <a href="http://trentrichardson.com/examples/timepicker/" rel="nofollow"><strong>here</strong></a>.It says "In addition all datepicker options are still available through the timepicker addon."</p>
  
  <p>Thanks.</p>