Added a great comment.
Merge remote-tracking branch 'origin/master'
Added a way to give one device control over which player will be the sender and which one the receiver (assymetry).
Merge remote-tracking branch 'origin/master'
Added property weDecideWhoIsWho which is true for one of the devices, if we use GC and also if we don't use GC.
Merge remote-tracking branch 'origin/master'
Property weDecideWhoIsWho is now used for letting one player control one pawn and the other player control the other pawn. Doesn't work properly yet though, possibly due to hackish packing and unpacking of RoundActions in and out of NSData.