Medo <smaxein@googlemail.com> [Sun, 03 Jun 2012 01:24:18 +0200] rev 7171
frontlib refactoring
socket.h now completely wraps all the lowlevel neworking, so it would be easy
to switch away from SDL_net if needed. Also reduced global state by making an
IPC connection an object-like thing.
Only create textures for non-empty LandPixel chunks. This should save a fair amount of memory, especially on smaller maps, and eliminate a number of draws