CriteriaUpdate has not Listener to update modifiedBy and modifiedAt

[tuxBurner]

Problem
There is a Listener EmgrMarkDeletedCriteriaUpdateFilterEvent, but not for EmgrBeforeCriteriaUpdateEvent to set automatically modifiedBy and modifiedAt.
So these columns are not automatically updated.

Solution
Created EmgrBeforeCriteriaUpdateEventHandler and register it in EmgrFactory.

Test
CriteriaUpdateTest.testUpdateModified

Fixed in internal Branch 2.3.EDG-SNAPSHOT.