message: Intializing class members, as per Mikolaj's request
diff: @@ -118,6 +118,9 @@ AliPerformanceTPC::AliPerformanceTPC(TRootIOCtor*):
  h_tpc_track_neg_recvertex_4_5_6(NULL)
  {
  // io ctor
  + fMult = 0;
  + fMultP = 0;
  + fMultN = 0;
  }
  //_____________________________________________________________________________
  