option to force cleaning of the fProducer/fConsumers members of AliAnlysisDataContainer
option to force cleaning of the fProducer/fConsumers members of AliAnlysisDataContainer

they are not destroyed in the dtor, but sometimes are streamed with the analysis output.
option needed in case some task has a bad dtor.

mkrzewic/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot