message: Open Fast simulation parameter file correctly in grid environment
diff: #include "TFile.h"
  #include "TObjString.h"
  #include "TObjArray.h"
  +#include "TGrid.h"
  #include <cmath>
  @@ -149,7 +150,10 @@ double AliPieceWisePoly::Eval (double x, double* p) {
  }
  void AliPieceWisePoly::ReadFSParameters(TString parameterFile, TF1** effFunctions) {
  - TFile* f = new TFile(parameterFile.Data(), "READ");
  + if(parameterFile.Contains("alien://") && ! gGrid)
  + TGrid::Connect("alien://");
  +
  + TFile* f = TFile::Open(parameterFile.Data(), "READ");
  for (Int_t species=0;species<AliPID::kSPECIES;++species) {
  for (Int_t charge=0;charge<=1;++charge) {
  TString name = TString::Format("fastSimulationParameters_%s_%s", AliPID::ParticleShortName(species), charge ? "pos" : "neg");
  