Minor updates to firewall negotiation queuing. This was preventing players joining games in some situations (usually when many players were trying to join at once, or when many players hit the abort button on this dialog).

Minor updates to low-level packet handling which were causing server instability when unexpected traffic appeared on the game port.

LAN hosting is now allowed on routable IP addresses.

Cosmetic fix to game list control which was displaying multiple selected games when the list was refreshed in some cases.