Bugfix: If a client sends </stream:stream>, the server has to reply with </stream:stream> before it closes the connection. Problem described in http://www.igniterealtime.org/community/thread/27013

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/branches@9178 b35dd754-fafc-0310-a699-88a17e54d16e