message: mc header for pp MC
diff: @@ -166,12 +166,14 @@ void AliJCatalystTask::UserExec(Option_t* /*option*/)
  return;
  }
  + if(!fnoCentBin) {
  AliGenHijingEventHeader* headerH = dynamic_cast<AliGenHijingEventHeader*>(mcEvent->GenEventHeader());
  if(!headerH)
  return;
  //Double_t gReactionPlane = headerH->ReactionPlaneAngle();
  Double_t gImpactParameter = headerH->ImpactParameter();
  fcent = GetCentralityFromImpactPar(gImpactParameter);
  + }
  if(flags & FLUC_ALICE_IPINFO){
  //force to use ALICE impact parameter setting
  double ALICE_Cent[8] = {0, 5, 10, 20, 30, 40, 50, 60};
  