* Added racetrack and put an objective on it
* Fixing objective scaling so it's not confusing when I have to go in
and add/change them
* Terrain can now be generated at arbitrary positions. It's very leaky
right now memory-wise
* Updated Tracy to not crash
* Added collision listening system
* Added objectives to make it into a "game"
* Upped default engine force
* Lowered wheel friction
* Turned on skybox
* Fix crash if setting position before node is ready
* The problem was that the OpenGL context wasn't active, so it
couldn't bind buffers. I removed any context deactivation code because
it isn't necessary
* Updated .gitignore to ignore more generated assets
* At last, levels can be loaded! .obj is used for collision, and .dae is
used for rendering. I figured I'd want separate collision meshes
anyways.
* Added bullet vehicle tips for future reference