message: PWGPP-6, - fix in MakeHistogram parsing -
  possibility to use :: in selection
diff: @@ -1188,6 +1188,7 @@ TObjArray * AliTreePlayer::MakeHistograms(TTree * tree, TString hisString, TStr
  hisDescriptionArray->AddAtAndExpand(new TObjString(((hisDescriptionList->At(iHis)->GetName()))+(hisIndex+2)),iHis);
  }
  hisDescription.Remove(hisIndex);
  + hisDescription.ReplaceAll("::","____");
  TObjArray *hisDimArray=hisDescription.Tokenize(":");
  Int_t nDims=hisDimArray->GetEntries();
  if (nDims<=0){
  @@ -1195,6 +1196,11 @@ TObjArray * AliTreePlayer::MakeHistograms(TTree * tree, TString hisString, TStr
  ::Error("AliTreePlayer::MakeHistograms","Invalid description %s",hisDescription.Data());
  delete hisDimArray;
  break;
  + }else{
  + for (Int_t iDim=0; iDim<nDims;iDim++) {
  + TObjString *tFormula = (TObjString*) hisDimArray->At(iDim);
  + tFormula->String().ReplaceAll("____","::");
  + }
  }
  TObjArray * varArray = new TObjArray(nDims);
  if (hisDimArray->At(nDims-1)->GetName()[0]=='#'){
  