message: update SW_DISPATCH_UIDMOD, change the default value of uid.
diff: @@ -783,7 +783,7 @@ static sw_inline int swServer_worker_schedule(swServer *serv, int fd, swEventDat
  else if (serv->dispatch_mode == SW_DISPATCH_UIDMOD)
  {
  swConnection *conn = swServer_connection_get(serv, fd);
  - if (conn == NULL)
  + if (conn == NULL || conn->uid == 0)
  {
  key = fd;
  }
  