gistfile1.txt

            if error == nil
            {
                let mostRecentMessage = self.messages.first
                var indexPathArray = [NSIndexPath]()
                var index = 0
                for tweet in tweetMessages
                {
                    //If any new tweets are found, add them to the array
                    if tweet.bornOn!.compare(mostRecentMessage!.bornOn!) == NSComparisonResult.OrderedDescending
                    {
                        self.messages.insert(tweet, atIndex: index)
                        indexPathArray.insert(NSIndexPath(forItem: index, inSection: 0), atIndex: index)
                        index++
                    }
                    self.collectionView.insertItemsAtIndexPaths(indexPathArray)
                }
            }