Rename AppRTCDemo on Android and iOS to AppRTCMobile

webrtc/examples/objc/AppRTCMobile/ARDCEODTURNClient.m

 /*
  *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 46 matching lines @@
             NSLocalizedDescriptionKey: @"Bad TURN response.",
           }];
       completionHandler(turnServers, responseError);
       return;
     }
     completionHandler(turnServers, nil);
   }];
 }
 
 @end