Relsig

This isn't so much related to the gdx-ai itself as much as the tests, documentation, and tutorials based on them, specifically [Box2dSteeringEntity](https://github.com/libgdx/gdx-ai/blob/master/tests/src/com/badlogic/gdx/ai/tests/steer/box2d/Box2dSteeringEntity.java). I'm still learning so feel free to correct...