Create method in Alert class, which create alert with given title and message
	OrderItemsDataProvider
		add method
			+ (void) closeOrder: (int) orderId responseBlock: (void (^)(NSError *))callback;
	RemoteOrderItemsDataProvider
		add method
			+ (void) closeOrderById: (int)orderId responseBlock: (void (^)(NSError*)) callback;
OrderItems viewController
Instead programmatically creating barItemButton added it on storyboard