move to swift 4.2

enzevalos_iphone.xcodeproj/project.pbxproj

enzevalos_iphone/AppDelegate.swift

enzevalos_iphone/CollectionDataDelegate.swift

enzevalos_iphone/Contact.swift

enzevalos_iphone/ContactViewController.swift

enzevalos_iphone/ExportInfoViewController.swift

enzevalos_iphone/ExportViewController.swift

enzevalos_iphone/FlipTransition.swift

enzevalos_iphone/FolderViewController.swift

enzevalos_iphone/GamificationStatusViewController.swift

enzevalos_iphone/InboxViewController.swift

enzevalos_iphone/IntroContactViewController.swift

enzevalos_iphone/IntroInfoButton.swift

enzevalos_iphone/IntroPageViewController.swift

enzevalos_iphone/KeyViewController.swift

enzevalos_iphone/ListViewController.swift

enzevalos_iphone/MailHandler.swift

enzevalos_iphone/Onboarding.swift

enzevalos_iphone/QRScannerView.swift

enzevalos_iphone/ReadViewController.swift