Changes

* Camera

** When increasing or decreasing the X Axis for the camera's position it does move in the current direction but also starts to rotate around the vector (0,0,0).

* Rendering

** <del>( The depth buffer is not working, objects aren't properly occluded.)[http://matrix.senecac.on.ca/~asalga/canvas3d/teapot.jpg teapot handle drawn after teapot body] The rendering of objects seems to be based on their order in the object list in the scene. The problem arises when a cube is behind another cube. The cube in the back should only have the parts showing drawn, however if this cube is drawn after the closer cube then the behind cube is drawn on top of the closer cube. Hard to describe.</del> FIX: Enabled the depth buffer and properly cleared the depth buffer by passing in the correct argument to clear(...)