use strings for recordBasis (#2615 und #3544)
Make Specimen - SpecimenDescription one-to-many #3571
rename FieldObservation -> FieldUnit #3351
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)
added uuid to test
tests for image galleries in derived unit facade and bugfix for test in DescriptionServiceImplTest which didn't run in maven.