   var isLoadingOAuthToken: Bool = false
   
   static let ErrorDomain = "com.error.GitHubAPIManager"
-  
+
   // handler for the OAuth process
   // stored as vars since sometimes it requires a round trip to safari which
   // makes it hard to just keep a reference to it

          completionHandler(.Failure(error!))
          return
        }
        completionHandler(.Success(true))
    }
  }

          return
        }
        // error will be nil if the call succeeded
        self.clearCache()
        completionHandler(error)
    }
  }
