Fix for setAngularDamping / bullet native.

[riccardobl]

Kirill told me to commit this.
So, I can not be considered liable for any explosion, amputation, stallmanization, injury of people or animals.

[dokthar]

(alternatively) you could also change at https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/jme3-bullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java#L394

+ setDamping(objectId, getLinearDamping(),angularDamping);
- setAngularDamping(objectId, angularDamping);