Call super's designated initializer on initialization

[Theome]

The initializer initWithCroppingStyle:image: calls a super initializer that is not a designated initializer. This leads to a crash on initialization of subclasses implemented in Swift that don't provide a custom init().

To reproduce the issue, create a subclass in Swift as follows:

class CropViewController: TOCropViewController {
  init(image: UIImage) {
    super.init(croppingStyle: .default, image: image)
  }
  /* ... */
}

A call to init(image:) will throw an exception.

The PR fixes this issue.

[TimOliver]

Ah! Sorry for the delay! I had no idea those kinds of Swift issues existed. Thanks so much for that!

I'm collecting all of the bugs people have reported so far and will try and ship a new release soon.