Merge "Fix TransitionManager.go() to allow null transitions" into lmp-dev

        final ViewGroup sceneRoot = scene.getSceneRoot();

        Transition transitionClone = transition.clone();

        Transition transitionClone = null;

        if (transition != null) {

            transitionClone = transition.clone();

            transitionClone.setSceneRoot(sceneRoot);

        }

        Scene oldScene = Scene.getCurrentScene(sceneRoot);

        if (oldScene != null && oldScene.isCreatedFromLayoutResource()) {

        if (oldScene != null && transitionClone != null &&

                oldScene.isCreatedFromLayoutResource()) {

            transitionClone.setCanRemoveViews(true);

        }