/// <summary>
 /// An implementation of this method can be used to send the token to the server so 
 /// that the token can be registered to a specific user. 
 /// </summary>
 /// <param name="token">The registration id of the app device provided by GCM</param>
 void SendRegistrationToAppServer(string token)
 {
     DevicesController dc = new DevicesController();
     Log.Debug("SendRegistrationToAppServer", "token");
     //TokenHandler th = new TokenHandler();
     string aSerial = Android.OS.Build.Serial;
     //th.CheckToken(token, aSerial);
     dc.InsertOrUpdateDevice(token, aSerial, "android");
 }