             messageString = String(format: NSLocalizedString("<p>[Please insert your message here]</p><p><em>For support inquiries, please include the following information. These make it easier for me to help you. Thank you!</em><p><hr><p><strong>Support Information</strong></p></p>%@ Version %@ (%@)<br>%@ (%@)<br>iOS %@ (%@)</p><hr>", comment: "Prefilled Email message text"),self.appName!, self.appVersion!, self.appBuild!, device, deviceString!, iOSVersion, lang)
         }
         
-        let subject = String(format: "%@ %@", self.appName!, self.appVersion!)
+        let subject = "\(self.appName!) \(self.appVersion!)"
         
         let mailController = MFMailComposeViewController()
         mailController.mailComposeDelegate = self

    public var headerBackgroundImage: UIImage?
    
    /// The image for the button to dismiss the RFAboutViewController. Defaults to image of "X".
    public var closeButtonImage: UIImage? = UIImage(named: "Frameworks/RFAboutView_Swift.framework/RFAboutView_Swift.bundle/RFAboutViewCloseX")
    
    /// Determines if the header background image should be blurred. Defaults to true.
    public var blurHeaderBackground = true

            mailController.setToRecipients([self.contactEmail!])
            self.presentViewController(mailController, animated: true, completion: nil)
        } else {
            let supportText = "\"\(self.appName!) Version \(self.appVersion!) (\(self.appBuild!)), \(device) (\(deviceString!)), iOS \(iOSVersion) (\(lang))\""
            
            let alert = UIAlertController(title: NSLocalizedString("Cannot send Email", comment: "Cannot send Email"), message: String(format:NSLocalizedString("Unfortunately there are no Email accounts available on your device.\n\nFor support questions, please send an Email to %@ and include the following information: %@.\n\nTab the 'Copy info' button to copy this information to your pasteboard. Thank you!", comment: "Error message: no email accounts available"),self.contactEmail!, supportText, lang), preferredStyle: UIAlertControllerStyle.Alert)
            let dismissAction = UIAlertAction(title: NSLocalizedString("Dismiss", comment: "Dismiss error message"), style:UIAlertActionStyle.Cancel, handler: { (action) -> Void in
