Recent issues (move topics, member group icons)

Prevent runaway number of member group icons: I did not use the validator to enforce this, it will just silently change it to a max of 10 now (instead of 99).  validator would raise an error and when we don't (yet) have a nice way to return to the form (with the data) to show the error(s) ... well for all the forms, something for 1.1

Mass topic moving: Fixed this so it now working (missing require once), but I think more may be needed.  I also fixed the paused loop which was not working but then again it is not needed unless you are moving a lot of topics.  

One thing that I did not track down is when you move topics and don't require the pause screen (trigger by the timer loop, so move a board with a low number of topics) then sometimes when it finishes you have to re-enter the admin password to see the It's done message.   I think this is a session issue, not sure @emanuele45 if you have a moment I'd appreciate a look !