userToPlay is now not required and is set if undefined when a player is added
userToPlay is now not required and is set if undefined when a player is added

UofM-COMP4350-4/NBGI,UofM-COMP4350-4/NBGI,UofM-COMP4350-4/NBGI,UofM-COMP4350-4/NBGI,UofM-COMP4350-4/NBGI,UofM-COMP4350-4/NBGI