Cleans FLAT_WORLD and updates WORLDTYPE.
Use ConfigParser to read/write config options
Optimization
Merge branch 'master' of git://github.com/BertrandBordage/Minecraft
Fog added to config, more optimization
Adds gitignore and removes Thumbs.db
Merge branch 'master' of git://github.com/BertrandBordage/Minecraft
Added save.dat and game.cfg (auto-generated if missing) to .gitignore
Moved max_trees to config file, allow to overwrite it with argument
Terrain argument is now limited to available options. Moved terrain options to a dictionary
Merge remote-tracking branch 'boskee/master'