fix for object pooling and more work done for enemies
work on robots and some other small fixes.

3-19-13
	x make jumping from wall to wall easier
	x robots blow up and give you power ups
	x make different power ups / weapons
	x set when power ups are randomly given to robots - on activate a new
random power up
	x set when robots drop those power ups
	x setup power level of blasts and life meter on enemy
	x set when the player picks up power ups
	x make robot say when a power up should be made