PIM-2256 : remove set value class listener
PIM-2256 : remove setValueClass method
PIM-2256 : remove the call to deprecated method
PIM-2256 : move timestampable listener
PIM-2256: update timestampable listener
PIM-2256 : create a dedicated config file for listeners
PIM-2256 : update upgrade fdoc
Merge pull request #896 from akeneo/mongo/set_value_class_listener

EventListeners (part1) (MongoDB support)