Merge pull request #237 from MITx/cpennington/rss-feed-fix

Don't start the rss feed with a blank line, as that causes some versions...

lms/templates/feed.rss

-<%! from django.core.urlresolvers import reverse %>
+<%! from django.core.urlresolvers import reverse %>\
 <?xml version="1.0" encoding="UTF-8"?>
 <%namespace name='static' file='static_content.html'/>
 <feed xml:lang="en-US" xmlns="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/">