MFI-62 MFI-51 user’s RoomJID returned when connected successfully to a MUC
Merge branch 'ProtocolRefactoring' of https://github.com/mobilis/9cards into ProtocolRefactoring

Conflicts:
	MobilisNineCards_iOS/NineCards/NineCards/GameViewController.m
MFI-51 collection view improvements iPhone
MFI-51 player stats collection view on iPad – Layout constraints exception I could not solve yet
MFI-51 first version of player stats collection view finished for iPad
MFI-51 keep the “waiting for other players” message centered on orientation change