Box2dLights (jni version) integration into libgdx

Hi!
I just finished some JNI optimisations for box2dLight. The performance are very good!
I also integrate the box2dLight into libgdx in order to have access to box2d's native address.
I tried to not impact libgdx too much but had to add 2 function in src\com\badlogic\gdx\physics\box2d\World.java...

Please tell me if I can do something to make easier the integration into libgdx!