onChatRoomPresence and showStatusMessages have been refactored to give more
detailed information and to also show the reasons given to actions taken by
moderators.
* Filter by both fullname and jid when searching for users to invite.
* Combine the confirm and prompt popups into a single confirm popup.
* Bugfix in groups filter. Make sure to show group that were previously filtered out.
Some of the tests were failing because they didn't expect the controlbox to be
returned from localStorage.
It's too long ago that I've looked at this branch for me to say whether this is
a legitimate bug or not.
Will have to investigate further.