Add "ornaments".
change color combination
Remove duplication for addRoom.
Add calls to sortRooms in various places.
Add test for updating last Topic ID and last Comment ID of a Room.
Add room sorting when loading Topic finished.
Handle "newmessage" event.
Minor refactor on addTopic.
Add "documentation" on ChatroomContentController.
Add pending test for User.
Add condition for setting the last Topic and Comment for a Room.
Fix bug: wrong unread comments shown when changing Room.
Add check on CommendPosted event.