Removes Depth1WinFiner.java and TwoPlayerDepth2LossFinder.java, merged into MiniMaxSearcher with depth-1 and -2.
Fixes a bug to detect win move, but still .. (?).
Fixes Mini Max bug(s)..
Adds ReversiUtils.java for "Reversi" specific score function.
Supports "English Draughts" with CheckersUtils.