message: The Navigate event fires on the from crumb
  It used to fire on the to crumb but changed SceneController from didShow (to) to didMove (from)
diff: @@ -15,7 +15,7 @@ var addNavigateHandlers = stateNavigators => {
  var emitter = new NativeEventEmitter(NavigationModule)
  emitter.addListener('Navigate', ({crumb, tab}) => {
  var stateNavigator = stateNavigators[tab];
  - var distance = stateNavigator.stateContext.crumbs.length - crumb;
  + var distance = stateNavigator.stateContext.crumbs.length - crumb + 1;
  if (distance > 0) {
  var url = stateNavigator.getNavigationBackLink(distance);
  stateNavigator.navigateLink(url, undefined, true);
  