0.3.15

Configurable strictness on incorrect or missing uniforms in shaders
New class (Projection) for representing a projection matrix
FBO supports convenient draw method
Texture supports convenient draw method
More work in DeferredRenderer
Bug: FPS is now calculated correctly
Bug: Display the requested texture path when not found
Bug: Effect.draw() should raid NotImplementedError
Cache VAOs that will always be the same in the geometry pacakge