message: Adding analysis task for Rho+JPsi in PbPb
diff: #pragma link C++ class AliAnalysisTaskJPsiMC_DG+;
  #pragma link C++ class AliAnalysisTaskCentralJpsi_DG+;
  #pragma link C++ class AliAnalysisTaskUpcPhi0+;
  +#pragma link C++ class AliAnalysisTaskUpc2Pi2E+;
  #endif
  