27-08-11 - Server update.

[Ze_PilOt]

- Fixed an issue from where the lobby tells you that you already host a game - Happened when you quit a game as host and try to host a new one immediatly.
- Fixed a thread locking when you rejoin a new game but previous game wasn't closed yet.
- Adding a disconnection method from socket when the lobby send a FA_CLOSED request.