message: fix outfile class
diff: //==== Create containers for input/output
  AliAnalysisDataContainer *cinput = mgr->GetCommonInputContainer();
  - AliAnalysisDataContainer *FFhist = mgr->CreateContainer(Form("%scontainer",FFtask->GetName()), TDirectory::Class(), AliAnalysisManager::kOutputContainer, Form("%s:%s", AliAnalysisManager::GetCommonFileName(), FFtask->GetName()));
  -
  + AliAnalysisDataContainer *FFhist = mgr->CreateContainer(Form("%scontainer",FFtask->GetName()), TList::Class(), AliAnalysisManager::kOutputContainer, Form("%s:%s", AliAnalysisManager::GetCommonFileName(), FFtask->GetName()));
  //==== Connect input/output
  mgr->ConnectInput(FFtask, 0, cinput);
  mgr->ConnectOutput(FFtask, 1, FFhist);
  