message: Set the navigation module onto first controller
  It's missing from the first one because the navigaiton module isn't known about at init time
diff: @@ -28,6 +28,7 @@ RCT_EXPORT_METHOD(render:(NSInteger)crumb tab:(NSInteger)tab titles:(NSArray *)t
  } else {
  navigationController = (UINavigationController *)rootViewController;
  }
  + ((NVSceneController *) [navigationController viewControllers][0]).navigationModule = self;
  NSInteger currentCrumb = [navigationController.viewControllers count] - 1;
  if (crumb < currentCrumb) {
  