Light source v1

Note: please ignore the previous two versions of mine.

In this, I created the Trailing effect such that it comes within the
boundaries. Please tell me if you see any abnormal animations.

I am yet to build the CBrush class (which I'll be doing now).

Bottomline: Thanks Gigi!
Merge branch 'master' of https://github.com/arindrakumardas/kinectlightpainting

Conflicts:
	Application/Application.pde
	Application/CBrush.pde
	Application/CLightSource.pde