[TIMOB-17665] Added checks for the 2 new iOS8 CLAuthorizationStatus kCLA...

...uthorizationStatusAuthorizedWhenInUse & kCLAuthorizationStatusAuthorizedWhenInUse so that if in tiapp.xml NSLocationWhenInUseUsageDescription only is included the users location will be shown on the map when userLocation is set to true.

https://jira.appcelerator.org/browse/TIMOB-17665