added XML Schema reference to site.xml
added XML Schema reference to site.xml

git-svn-id: 677255a72fc9a6946e9326765bd35a363b49ea29@10676 52ab4f32-60fc-0310-b215-8acea882cd1b

doychin/webstart,mojohaus/webstart,mojohaus/webstart,doychin/webstart