SAK-24978 TA required to post before being able to see student posts when 'Require users to post before reading' set


git-svn-id: https://source.sakaiproject.org/svn/msgcntr/trunk@132897 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-24861 Ability to move a thread to a different topic
removing chance for NPE


git-svn-id: https://source.sakaiproject.org/svn/msgcntr/trunk@132898 66ffb92e-73f9-0310-93c1-f5514f145a0a