version 0.1.11 changelog:
- added several buildings in the nova frontier circuit
- made Nova Frontier circuit a finished map; now working on two other ones
- corrected the reverse function: now reverse as brake is deactivated, reverse switches automatically when automatic gears is selected and the car is almost at stop, but it doesn't when the driving mode is manual.
- corrected car behavior when oversteering: some cars now have more adherence, steers better, and don't do barrels for a small steering angle.