Added createProjectionMatrix() and createOrthoProjectionMatrix()
to GLUtils
Removed CopyOf_RotatinShapesDemo.java
Removed demo TheQuadExampleTextured.java
Added demo SingleTriangleDemo with shaders.
Added comments to ShaderUtils.java
Removed texture coord from vertex.glsl since there are not textures being used yet in Tetrix.
Modified demo TheQuadExampleMoving.java to use custom functions.