Preview release file

Known issues:

• the game runs horribly slow on ATI/AMD video cards - I have no idea why this happens; I'll be trying to fix that when I get some free time,
• the soldier in the middle of the map cannot be killed, moves in a silly way and clips through trees and buildings - he's just a prop that I will be using to visualize the footmobile AI during its development; the 2D sprite will be replaced by a 3D model at some point,
• console output (stdout.txt and stderr.txt files on Windows) will be filled with debug information, please disregard that,
• some buildings overlap - this will be fixed in the future.

Enjoy!