First steps toward replacing environment classes
Introduced new class, like AppEnvironment but instead it's called GlutTrampoline
Got glut working by starting over, recopying environment.
factored worldapp launch into function
Added new launch function taking an App as an argument
Attempt to make sprite demo work app paradigm: builds but doesn't work yet.  Moving to other computer via git.
Merge pull request #20 from 2-complex/apps

Apps