Improves win/loss goal and score value calculation.
Debugging minimax (even without alpha-beta pruning), and suppresses logger output of getGoal() for some games.
Fixes a bug to use minimax scores with depth > 6.
Moves puzzle related classes from plan to puzzle package.
Adds PegPlanner.java and PegUtils.java for "Peg Jumping".
Supports "European Peg Jumping".