updated pods
Used instancetype instead of id
Added YRNRangedBeaconsViewController
Implemented beacon ranging
Added YRNRangedBeaconsViewController to storyboard
Refactor : Renamed YRNMainViewController -> YRNBeaconDetailViewController
Changed implementation to show information of a specific CLBeacon object
Implemented push segue to detail view controller
Implemented category on CLBeaconRegion to create regions from dictionaries and plist files.
Used CLBeaconRegion+YRNBeaconManager.h
No need to check if delegate is not nil
Removed Beacon region creation logic from YRNBeaconManager

Added `-registerBeaconRegions:` to register multiple regions. The array
can be created using a configuration file with
CLBeaconRegion+YRNBeaconManager
Started using new interface
Introspection to make sure the objects in the array are CLBeaconRegion objects.
Added docs