message: fixed Grid connection
diff: * as an example, one histogram is filled
  */
  +#include <TGrid.h>
  #include "TChain.h"
  #include "TMath.h"
  #include "TVector3.h"
  @@ -2168,6 +2169,11 @@ TProfile* AliAnalysisTaskCaloHFEpp::GetEstimatorHistogram(const AliAODEvent* fAO
  TString estimaterFile = "alien:///alice/cern.ch/user/s/ssakai/Multiplicity_pp13/estimator.root";
  + if(!gGrid)
  + {
  + TGrid::Connect("alien//");
  + }
  +
  TFile* fEstimator = TFile::Open(estimaterFile.Data());
  if(!fEstimator)AliFatal("File with multiplicity not found");
  