Project replaced by all other client work

This project contains the combinations of game-logic, collision, and
graphics-engine. All of these individual projects are still available on
dropbox (in case I missed anything).

As well, a little work has been done to get a player on the screen and
pointing his gun. Tomorrow I will have him shoot and hopefully move
appropriately using the physics engine.

Objects are now held as a Texture2D* instead of an int, though it has a
GetIndex() method that must be used to draw.