Update Podfile to point to AFNetworking 2.x. Comment out reachability stuff in SFAppDelegate for time being. WIP.
Switch SFCongressApiClient to subclass AFHTTPSessionManager (iOS 7 required). Update to new convenience methods for GET requests across services that depends on SFCongressApiClient. Cache-control override and reachability stuff commented out for time being.
Update SFBoundaryService to use AFHTTPSessionManager.
Reimplement artificial caching (3 min) of api responses.