fix ios test

lib/ios/RNNAnimator.m

 {
 	UIViewController* toVC   = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
 	UIViewController* fromVC  = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
-	UIView* componentView = [transitionContext componentView];
+	UIView* componentView = [transitionContext containerView];
 	self.fromVC = fromVC;
 	self.toVC = toVC;
 	toVC.view.frame = fromVC.view.frame;

lib/ios/RNNInteractivePopAnimator.m

 	return YES;
 }
 - (void)animationEnded:(BOOL)transitionCompleted {
-	
+
 }
 
 - (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext
 	self.transitionContext = transitionContext;
 	UIViewController* toVC   = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
 	UIViewController* fromVC  = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
-	UIView* componentView = [transitionContext componentView];
-	
+	UIView* componentView = [transitionContext containerView];
+
 	toVC.view.frame = fromVC.view.frame;
 	UIView* topViewContent = [self.topView subviews][0];
 	UIImage* image = [[self.topView subviews][0] image];
 								  if (![transitionContext transitionWasCancelled]) {
 									  [componentView addSubview: toVC.view];
 									  [transitionContext completeTransition:![transitionContext transitionWasCancelled]];
-									  
+
 								  }
 								  if ([transitionContext transitionWasCancelled]) {
 									  [self.topView setHidden:NO];
 								  animationControllerForOperation:(UINavigationControllerOperation)operation
 											   fromViewController:(UIViewController*)fromVC
 												 toViewController:(UIViewController*)toVC {
-	
+
 		if (operation == UINavigationControllerOperationPop) {
 			return self;
 		} else {
 			return nil;
 		}
-	
+
 	return nil;
-	
+
 }
 - (id<UIViewControllerInteractiveTransitioning>)navigationController:(UINavigationController *)navigationController
 						 interactionControllerForAnimationController:(id<UIViewControllerAnimatedTransitioning>)animationController {

lib/ios/ReactNativeNavigationTests/RNNControllerFactoryTest.m

 - (void)testCreateLayout_ComponentStackLayout {
 	id ans = [self.factory createLayoutAndSaveToStore:
 			  @{@"id": @"cntId",
-				@"type": @"ComponentStack",
+				@"type": @"Stack",
 				@"data": @{},
 				@"children": @[]}];
 	XCTAssertTrue([ans isMemberOfClass:[RNNNavigationController class]]);
 - (void)testCreateLayout_ComponentStackLayoutRecursive {
 	RNNNavigationController* ans = (RNNNavigationController*) [self.factory createLayoutAndSaveToStore:
 															 @{@"id": @"cntId",
-															   @"type": @"ComponentStack",
+															   @"type": @"Stack",
 															   @"data": @{},
 															   @"children": @[
 																	   @{@"id": @"cntId_2",
 														  @"data": @{},
 														  @"children": @[
 																  @{@"id": @"cntId_2",
-																	@"type": @"ComponentStack",
+																	@"type": @"Stack",
 																	@"data": @{},
 																	@"children": @[
 																			@{@"id": @"cntId_3",