     typealias CancelableTask = (cancel: Bool) -> Void
     
     func delay(time: NSTimeInterval, work: dispatch_block_t) -> CancelableTask? {
-        
+
         var finalTask: CancelableTask?
         
         let cancelableTask: CancelableTask = { cancel in

    public weak var leftArrowSelectedImage: UIImage!
    public weak var rightArrowImage: UIImage!
    public weak var rightArrowSelectedImage: UIImage!
    public weak var doneButtonImage: UIImage!
    public weak var scaleImage: UIImage!
    
    public weak var trackTintColor: UIColor!

        senderViewForAnimation = view
        performPresentAnimation()
    }

    public convenience init(aURLs: [NSURL], animatedFromView view: UIView! = nil) {
        self.init()
        let aPhotos = SSPhoto.photosWithURLs(aURLs)
