Bug: Atom feed is not working due to XML parse error

Created by: barberboy

I tried to subscribe to the atom feed in Opera, but got this error:

XML parsing failed

XML parsing failed: syntax error (Line: 16, Character: 13)

Error:
well-formedness constraint: entity declared 
Specification:
http://www.w3.org/TR/REC-xml/#wf-entdeclared 
 15:  <entry>
 16:    <title>How&ndash;to: Use <code>role="application"</code>
 17: </title>
 18:    <link href="http://a11yproject.com/posts/how-to-use-application-role"/>
 19:    <updated>2013-02-09T00:00:00-08:00</updated>

The content for the <title> element needs to be xml_escaped like the content.