message: add error code for uncommited folder
diff: @@ -169,6 +169,9 @@ void MessagePoller::processNotification(const SyncNotification& notification)
  case SYNC_ERROR_ID_CONFLICT:
  msg = tr("Concurrent updates to file. File %1 is saved as conflict file").arg(path);
  break;
  + case SYNC_ERROR_ID_REMOVE_UNCOMMITTED_FOLDER:
  + msg = tr("Failed to remove uncommited folder %1.").arg(path);
  + break;
  default:
  qWarning("Unknown sync error id %d", err_id);
  json_decref(object);
  