UploadImageViewController: Code clean-up. No
functional changes
Project file: Specify product name
UploadImageViewController: Dispatch to main queue
the operation to handle the update success
UploadImageViewController: Dispatch to main queue
the operation to handle errors
UploadImageViewController: Add a UIView and a
UIActivityIndicatorView to serve as a throbber view
UploadImageViewController: Implement the method
that will set the throbber view's visibility
UploadImageViewController: Show the throbber view
after the upload button is tapped
Project file: Update to build 2
UploadImageViewController: Evaluate the state
of the upload button after setting the image
UploadImageViewController: Add support for iOS
versions below 8.0 for the UIAlertController
UploadImageViewController: Manually set
the text of the ticketNumberField