title: init(coder:) has not been implemented in swift
body: <p>I have this class file for accepting card payments </p>
  
  <pre><code>import UIKit
  class PaymentViewController: UIViewController , PTKViewDelegate {
  
      var card : STPCard
      var PaymentView : PTKView
      var button   = UIButton.buttonWithType(UIButtonType.System) as UIButton
  
      init(PaymentView : PTKView , button : UIButton, card : STPCard) {
          self.PaymentView = PaymentView
          self.button = button
          self.card = card
          super.init()
      }
      required init(coder aDecoder: NSCoder) {
          fatalError("init(coder:) has not been implemented")
  }
  </code></pre>
  
  <p>When I build it, it works fine, but when I execute it (run it) on my actual device , I get </p>
  
  <pre><code>fatal error: init(coder:) has not been implemented.
  </code></pre>
  
  <p>Any ideas ? </p>