Automatic LAN configuration for NAT

[ibrahima]

If the selected server's IP is the same as your own public facing IP, try to find out the LAN IP address of the server. This will require cooperation of both sides. Hopefully not a security risk; I don't think there's anything an outside attacker would gain from finding your behind-NAT IP address.

Err, I guess the main reason I want to do this is when testing, it's annoying to type 127.0.0.1 if you start two ServerBrowsers and want one instance to join another, when you could just click the entry in the table.