message: make GetNPrimaries method const
diff: @@ -125,7 +125,7 @@ public:
  virtual Int_t GetParticleAndTR(Int_t i, TParticle*& particle, TClonesArray*& trefs);
  virtual void DrawCheck(Int_t i, Int_t search);
  virtual void AddSubsidiaryEvent(AliMCEvent* event);
  - virtual Int_t GetNumberOfPrimaries() {return fNprimaries;}
  + virtual Int_t GetNumberOfPrimaries() const {return fNprimaries;}
  virtual Int_t GetPrimaryOffset() const {return fPrimaryOffset;}
  virtual Int_t GetSecondaryOffset() const {return fSecondaryOffset;}
  virtual void SetPrimaryOffset(Int_t ioff) {fPrimaryOffset = ioff;}
  