implements override functions
Working
Player is dead modified
new Player is dead working
Added comments and Scoreboard and Score classes.
Added getTime method in TimerUtils.
Merge remote-tracking branch 'origin/businesslogic' into ui

Conflicts:
	src/ca/csf/minesweeper/MainController.java
	src/ca/csf/minesweeper/Minesweeper.java
	src/ca/csf/minesweeper/MinesweeperObserver.java