Creating method for new game
Adding reset logic to the newGame method; no need to call new game when showing the win or game over screens
Redrawing board, map and score on every repaint
Re-formatting GameScreen, also inlined method drawBoard and extracted fillBackground, for better control of the order things happen in
Extracting game start frames to its own method; no need to redraw pellets that were walked on by ghosts
Just formatting - spaces instead of tabs - argh Eclipse!
Drawing player and ghosts at beginning of GameScreen.paint