HTTP-TPC extensions (e.g. status code propagation, packet marking headers, ...)

• there are multiple reasonable requests to extend / improve HTTP-TPC standard
• WLCG is not the only user of HTTP-TPC
• form standardization committee that maintain this HTTP-TPC standard
  • transparent standardization process
  • clear way also for other communities to participate
• next BDT meeting - come with proposal how to organize such committee