BerryBots demo

I honestly don't feel it makes bot programming any more difficult really. Bots could still use the floating point if they want to and won't suffer being less accurate in a significant way. Consider that current robocode fields are measured with a size no bigger than 1200x1200 or so units, and that a 32-bit integer can store 1200 times one milion just fine. In robocode I doubt being one millionth of a unit off has ever mattered. Is more resolution really needed? When dealing in absolute coordinates it's more resolution than 32-bit floating point would give (24-bit mantissa).