Added in the new delegate callback for iOS. This method is only included when built for iOS. For version earlier than 8.0, this method will be included but will never be called.
- Increment to podspec version
Merge branch 'Ray/Handling_iOS_RSSI_Deprecation'

* Ray/Handling_iOS_RSSI_Deprecation:
  - Increment to podspec version
  Added in the new delegate callback for iOS. This method is only included when built for iOS. For version earlier than 8.0, this method will be included but will never be called.