Refactored command system and created a file for every command, neatly placed in a separate package; moved code around Yeti.java to clean it up and organize it better; added command to toggle debug rendering; tweaked game menu logo transition
Optimized model loader to use faster java IO; tweaked demo level; fixed odd crash that happened AFTER closing a scene with an animated model in it (due to certain buffers used by the animation keyframes not being properly deactivated); lots of refactoring;