message: Request schema in the hist viewer
diff: @@ -102,7 +102,7 @@ int AliZMQhistViewer::Run(void* arg)
  //send a request if we are using REQ
  if (fZMQsocketModeIN==ZMQ_REQ)
  {
  - string request;
  + string request("SchemaOnRequest=1");
  if (fSelectionRegexp || fUnSelectionRegexp)
  {
  @@ -113,7 +113,7 @@ int AliZMQhistViewer::Run(void* arg)
  }
  if (fVerbose) Printf("sending request CONFIG %s", request.c_str());
  - alizmq_msg_send("", "", fZMQin, 0);
  + alizmq_msg_send("CONFIG", request, fZMQin, 0);
  }
  //wait for the data
  