use strings for recordBasis (#2615 und #3544)
Make Specimen - SpecimenDescription one-to-many #3571
adding recordBasis to SpecimenOrObservationBase and removing some DerivedUnit classes (all #3378) and adding kindOfUnit to SpecimenOrObservationBase (except for according termType and vocabulary) #3568.
Updating test data for publish flag (II)
change service test terms to use same terms as in persistence
tests for image galleries in derived unit facade and bugfix for test in DescriptionServiceImplTest which didn't run in maven.