PIM-2288: Remove event dispatcher from mass action dispatcher
PIM-2288: Add event in pre/post delete handler
PIM-2288: Reorganize use statements
PIM-2307: Dispatch events on edit mass action handler
PIM-2307: Dispatch event for export handler
PIM-2307: Fix issue
PIM-2307: Update CHANGELOG.md
Merge branch 'master' into PIM-2307
Merge pull request #936 from akeneo/PIM-2307

PIM-2307: Add pre/post events in edit/delete handler