Correctly encode html in rss feed

git-svn-id: svn+ssh://svn.mageia.org/svn/soft/mga-advisories/trunk@8678 5b7c3c08-40e5-403b-9995-ace06908e4af
Version 0.15

git-svn-id: svn+ssh://svn.mageia.org/svn/soft/mga-advisories/trunk@8679 5b7c3c08-40e5-403b-9995-ace06908e4af