SAK-23313 need to double escape strings like &lt;tag&gt; because CKEditor will turn that into
a real tag and will not display the text to the user. So we encode &lt; as &amp;lt; and 
CKEditor than renders it normally as editable text


git-svn-id: https://source.sakaiproject.org/svn/jsf/trunk@120900 66ffb92e-73f9-0310-93c1-f5514f145a0a