v0.2.1

CONTROLS.md
Better error messages
Easier toggling fullscreen
Planet reflection skybox fix

Initial Release

Menger Prison + Raster Cube - Mixed media
Ray Tracing Sphere
Mandelbrot
Infinite Cube
Infinite Capsules
Room w/ Dynamic Point Light
Select A Box
Moon Billboard + Bump & Parallax Mapping
Planet & Asteroids
Reflection & Refraction
Live Image Kernels
Multi Scene
2D Pixel Scene