Fixed querying GoldSrc master servers
Fixed querying GoldSrc master servers

Steam Condenser now uses port 27013 for querying the master server. This isn't
the documented way, but it's at least a good workaround.

kickback/steam-condenser-ruby,koraktor/steam-condenser-ruby,Arie/steam-condenser-ruby,hcool/steam-condenser-ruby,jpalumickas/steam-condenser-ruby,bfosberry/steam-condenser-ruby