User location

Added

• Collecting the user's current location automatically (when the Analytics.userIdentity changes or the app enters foreground) and manually with the new Analytics.logLocation() method. To opt in to automatic location collecting, there is a new parameter, collectLocation, in Analytics.initialize(appName:apiKey:hasUserContext:collectLocation:deviceEvents:).

Fixed

• In Swift 3 for iOS, DeviceEvent.lifecycle events were not being recorded because there was no observer watching for app foreground events.