Spooner/ashton — pull request #7 by AmIMeYet (2012-08-12 21:01:01+00:00)
Title: Added stencil and multitexture shaders with an example

Similar to issue #2.

Implemented a basic two-texture vertex shader, and an image-stencil fragment shader. Added in_Mask uniform to shader to support this. Also added a usage example.