@Override
        public void read(JmeImporter im) throws IOException {
            InputCapsule ic = im.getCapsule(this);
            rigidBody = (PhysicsRigidBody) ic.readSavable("rigidBody", null);
            bone = (Bone) ic.readSavable("bone", null);
            joint = (SixDofJoint) ic.readSavable("joint", null);
            initalWorldRotation = (Quaternion) ic.readSavable("initalWorldRotation", null);
            startBlendingRot = (Quaternion) ic.readSavable("startBlendingRot", null);
            startBlendingPos = (Vector3f) ic.readSavable("startBlendingPos", null);
        }
De-serialize this bone link, for example when loading from a J3O
file.

@param im importer (not null)
@throws IOException from importer
jme3-jbullet/src/main/java/com/jme3/bullet/control/KinematicRagdollControl.java