message: following changes in accessing MC info
  fixing warnings
diff: @@ -108,10 +108,10 @@ fUseVtxAxis(kFALSE),
  fCourseCentralityBinning(kFALSE),
  fSkipTrigger(kFALSE),
  fInjectedSignals(kFALSE),
  +fRandomizeReactionPlane(kFALSE),
  fV0CL1PileUp(0),
  fESDTPCTrackPileUp(0),
  fTPCITSTOFPileUp(0),
  -fRandomizeReactionPlane(kFALSE),
  fHelperPID(0x0),
  fAnalysisUtils(0x0),
  fMap(0x0),
  @@ -490,7 +490,7 @@ void AliAnalysisTaskPhiCorrelations::CreateOutputObjects()
  // If some bins of the pool should be saved, fEventPoolOutputList must be given
  // using AddEventPoolToOutput()
  // Note that this is in principle also possible, if an external poolmanager was given
  - for(Int_t i = 0; i < fEventPoolOutputList.size(); i++)
  + for(UInt_t i = 0; i < fEventPoolOutputList.size(); i++)
  {
  Double_t minCent = fEventPoolOutputList[i][0];
  Double_t maxCent = fEventPoolOutputList[i][1];
  @@ -1798,8 +1798,7 @@ void AliAnalysisTaskPhiCorrelations::RemoveWeakDecaysInMC(TObjArray* tracks, TOb
  if (!particle)
  continue;
  - Bool_t kExcludeParticle = kFALSE;
  - Int_t motherIndex = particle->GetFirstMother();
  + Int_t motherIndex = particle->GetMother(0);
  if (motherIndex == -1)
  continue;
  