Added Sudden Death mode
added AbstractGame class and made Game inherit from it.
Added SuddenDeath class inheriting from AbstractGame
Added InputDialog class for collecting user initials for leaderboard
Added leaderboard support
Made sudden death mode start with a question
Merge branch 'master' into SuddenDeath

Conflicts:
	src/java/com/npe/triviamaze/Program.java
Merge branch 'SuddenDeath'