Added __pycache__ removal to Makefile
Put spaces around all equals signs
Moved header strings to sudoku/__init__.py
Moved constants to sudoku/__init__.py
Renamed Sudoku to Game
Moved BitBoard and Game to their own files, wiping out sudoku/sudoku.py
Moved Game contants to class attributes
Split test/test.py to test/bitBoard.py and test/game.py
Made spacing and top-level comments consistent