title: jQuery tooltip encodes text in title attribute
body: <p>I've updated jQuery UI to latest version (from 1.9.x) and there's something that I can not resolve, namely: in title attriutes I sometimes store HTML, for instance:</p>
  
  <pre><code>Start Date: 2012.01.01&lt;br /&gt;End Date: 2012.02.01
  </code></pre>
  
  <p>Before upgrade tooltip text was not encoded so I saw Start &amp; End date in two separate lines. However now, text in encoded and I see <br />. Is there a way to resolve it?</p>