fix getting Turtle Arena servers

Gamespy, Turtle Arena, and Alien Arena in side plane were switching around
(mixing up titles and masters). The Options tab in perferences was connected
to wrong game too. Caused by mismatch of server_type enum and games array in
src/games.c. Some functions like game_get_attribute assume the same order.

Add missing qstat config for Turtle Arena.
Merge pull request #57 from zturtleman/fix_turtle_arena

fix getting Turtle Arena servers #28