chore: Added 5.1.1 to CDVAvailability.h
chore: Added 5.1.1 to CDVAvailability.h

apache/cordova-ios,dpogue/cordova-ios,dpogue/cordova-ios,apache/cordova-ios,dpogue/cordova-ios,apache/cordova-ios,apache/cordova-ios,dpogue/cordova-ios,apache/cordova-ios,dpogue/cordova-ios,dpogue/cordova-ios,apache/cordova-ios,apache/cordova-ios