Version 5.1.0
=============
- Updated to Hipmunk 5.1.0.
Version 5.0.0
=============
- Updated for Hipmunk 5.0.0. Yay!
- Added a small car using @SimpleMotor@ (not the best way
of creating a car, but it works as a demo).
Version 0.2
===========
- Add a seesaw to the middle of the screen.
- Show the line of the pendulum.
- Show instructions on the screen.
- Add slow motion key.
- Add clear screen key.
- Add rotation control keys.
- Use higher frequency for the Chipmunk engine (360Hz instead of 120Hz).
- Draw a small red dot on the body's center.
Version 0.1
===========
- Initial public release.