Mafia: Requested features

-If checkNoVoters is true, Voting Phase will end faster (or not even begin) if all players that still didn't vote have noVote: true
-Added Protectmsg and Safeguardmsg
-Added a /tips command
Mafia Checker: checkNoVoters, protect/safeguard msg
Merge pull request #713 from IceKirby/patch-22

Mafia: Requested features