Fixed the way standalone client shuts down. Now single-player levels actually get saved, every time.
Deleted now-obsolete MinecraftStandalone.java
Merge pull request #225 from fragmer/master

Fixed the way standalone client shuts down. Now single-player levels actually get saved, every time.
Merge pull request #226 from tyteen4a03/master

More cleanups, CustomAABB is now under minecraft.physics
Removed FBO and OpenGlHelper (unused), renamed Frustrum to Frustum and some minor cleanup