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Revert Position

Implemented and tested
Made a few changes, check description

- Revert Position
- Player health can be adjusted via adjustHealth method (give negative
parameter to decrease health)
- Player1 can now run out of ammo
- Ammo drops picked up successfully add ammo
- Added ammoAmount field to ammoSupply class in case we need to change
the amount of ammo that a pick up gives
Merge pull request #5 from nanonoxi/Merada

Rename getBoundingSphere method in GameObject
Merge pull request #6 from nanonoxi/master

Merada_