EDIT

Update symbols for PresenceAbsenceTerms in csv files #5777

Remove hierachy information from PresenceAbsenceTerm csv as it will not
be used.

Change serial version id for identifiable entity and other minor issues

Fix empty protected titlecaches #5763

Adapt reusability of Credits / Rights

Adapt clone method for credits and rights to be consistent with JPA
mapping (not reusable).

Cleanup MediaRepresentationPart and PolytomousKeyNode #5756

Remove cascading to terms #5755

minor

Add orphanRemoval to RelationshipTermBase.inverseRepresentation

Same exists for TermBase.representation so we have consistent behavior
now. Also it makes sense as inverse Representations can not stand alone.