Initializes an image view with the image specified by a URL.
Original signature is '- (void)setImageWithURL:(NSURL *)url'
Available in Mac OS X v10.5 and later.
- url (NSURL)
- The URL that specifies the location of the image.
- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)