git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2345 b35dd754-fafc-0310-a699-88a17e54d16e
2. Made clearer the way to specify the amount of discussion history to receive while joining a room git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2333 b35dd754-fafc-0310-a699-88a17e54d16e