[recommit] Massive Broadcast Optimization

After some investigation, a search area of 200x200 ronimeters was far
too large for even multiple consecutive maps. The fact that the game
tolerated such massive areas without slowdown bodes well for the
scalability of this toolkit! However, I've still reduced the search
areas from 200x200 to 50x50 (still overlarge for even AI 205). This
should result in a *94%* possible performance increase! (assuming a
linear performance loss per ronimeter broadcasted over)