adding in some interfaces for the world objects to implement if they have renderable or updateable features
Merge branch 'master' into kevin
plugged in the new interfaces so it should all work automatically.
finished up the level end dialog and high scores saving.
Merge branch 'master' into kevin

Conflicts:
	CSC380GameProject/src/edu/oswego/tiltandtumble/screens/dialogs/ScoreDialog.java
	CSC380GameProject/src/edu/oswego/tiltandtumble/worldObjects/PushBumper.java
finished the Hole object, and the hud. cleaned up some minor issues.