title: MBProgressHud View Customization Not Work In Swift 3 And Not Showing?
body: <p>i am using the following code but not showing progress hud so please help for that.simple hud showing fine but customise not showing </p>
  
  <pre><code>let loadingHUD = MBProgressHUD() 
  
  loadingHUD.mode = MBProgressHUDModeCustomView
  loadingHUD.labelText = nil
  loadingHUD.detailsLabelText = nil
  let customView = UIView.init(frame: CGRect(x: 0, y: 0, width: 80, height: 80))
  
  let gifmanager = SwiftyGifManager(memoryLimit:20)
  let gif = UIImage(gifName: "miniballs1.gif")
  let imageview = UIImageView(gifImage: gif, manager: gifmanager)
  imageview.frame = CGRect(x: 0 , y: 0, width: customView.frame.width, height: customView.frame.height)
  customView.addSubview(imageview)
  customView.bringSubview(toFront: imageview)
  
  loadingHUD.customView = customView
  loadingHUD.customView.bringSubview(toFront: customView)
  loadingHUD.show(true)
  </code></pre>