Rotate with degrees

Now you can rotate with degrees. 

code:

		final EllipticalOrbitAnimation3D anim = new EllipticalOrbitAnimation3D(
				mCenterPoint, 
				getCurrentCamera().getPosition(),
				0, 60);
		anim.setTransformable3D(getCurrentCamera());
		anim.setDuration(8000);
		anim.setInterpolator(new DecelerateInterpolator());
 
      registerAnimation(anim);
        anim.play();
Merge pull request #704 from androidder/patch-1

EllipticalOrbitAnimation3D  rotate with degrees