CRUDManager inherits from ListenTo.
CRUDManager inherits from ListenTo.

Replace previous CRUDManager specific listenTo and stopListening behaviour with
ListenTo's generic behaviour.

jugglinmike/cee,councilforeconed/interactive-activities,jugglinmike/cee,councilforeconed/interactive-activities,councilforeconed/interactive-activities