refactor code

enzevalos_iphone.xcodeproj/project.pbxproj

enzevalos_iphone/AddressHandler.swift

enzevalos_iphone/AppDelegate.swift

enzevalos_iphone/Autocrypt.swift

enzevalos_iphone/CNMailAddressesExtension.swift

enzevalos_iphone/Contact.swift

enzevalos_iphone/ContactViewController.swift

enzevalos_iphone/DataHandler.swift

enzevalos_iphone/DateExtension.swift

enzevalos_iphone/EnzevalosContact+CoreDataClass.swift

enzevalos_iphone/EnzevalosContact+CoreDataProperties.swift

enzevalos_iphone/EphemeralMail.swift

enzevalos_iphone/ExportViewController.swift

enzevalos_iphone/Folder+CoreDataClass.swift

enzevalos_iphone/Folder+CoreDataProperties.swift

enzevalos_iphone/FolderViewController.swift

enzevalos_iphone/InboxCellDelegator.swift

enzevalos_iphone/IntroContactCell.swift

enzevalos_iphone/IntroContactTableViewController.swift

enzevalos_iphone/IntroContactViewController.swift