Stats and permissions issues

[DO97]

When a game ends with a reverse card, the stats are not updated (except for the number of cards played). This happened two times in a 1vs1, but also probably in largest games.

Another problem concern the permission to change mode, kill the game, open and close the lobby when the mode is changed to wild or fast. In that cases everyone can do it, even if they aren't game creators or admins.

[DO97]

Update: a skip card as final card counts games played two times
@j4rv