add original label info to derived unit #4218
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.
created OccurrenceDaoHibernateImplTest class for #2232