
This adds CONFIG_IP_NF_QUAKE3: a Quake III Arena support module for
netfilter connection tracking/NAT. 

Quake III Arena Internet multiplayer works by querying an Internet
master server on UDP port 27950 for specific Quake III servers. The
master server responds with the IP addresses and UDP ports of
registered game servers. Those UDP ports can be randomly chosen
(although 27960 is often used).

This connection tracking module will listen for UDP replies
from a master server, and will add the necessary expectations
for connections from client to game servers.
