update study setting parameters

enzevalos_iphone.xcodeproj/project.pbxproj

enzevalos_iphone/AppDelegate.swift

enzevalos_iphone/Dialog/DialogOption.swift

enzevalos_iphone/IconsStyleKit.swift

enzevalos_iphone/Logger.swift

enzevalos_iphone/New Group/Mailbot.swift

enzevalos_iphone/SendViewController+Invitation.swift

enzevalos_iphone/SendViewController.swift

enzevalos_iphone/StudySettings.swift

enzevalos_iphone/UserData.swift

enzevalos_iphone/study parameters/Invitation.swift

enzevalos_iphone/study parameters/SecurityIndicator.swift

...alos_iphone/study parameters/StudyParameterProtocol.swift

enzevalos_iphone/study parameters/Warning.swift

enzevalos_iphoneTests/StudyTest.swift