More style improvements.
Added animation when Pac-Man dies.
Added package-info files.
Pac-Man now keeps track of his score and Pellets award points. Also did
a small revision on the way Level handled collisions.
Synchronized the #move method.
Added the score panel and refactored the setup code into Launcher.
Fixed bug when GhostController stopped or started more than once.
Cleaned up unused imports and added missing doc
Added ButtonPanel and PButtons which return focus