+ RDF import code updated to import DD properties (aka elements from DD namespace)
+ Tests are updated accordingly
+ New test added to cover implemented functionality
Refs: #20478
+ Non-transactional concept create method added to run unit tests in memory db.
Refs: #20478
+ Non-transactional concept create method added to run unit tests in memory db.
Refs: #20478
Merge branch 'importFromNS_20478' of https://github.com/eea/eionet.datadict into importFromNS_20478
+ DD namespace updated for jenkins
Refs: #20478
+ Warning message added when user sets invalid working language
+ RDF import updated to compare language codes only rather than locale
+ Test data updated to cover updates
Refs: #20101
Merge branch 'importFromNS_20478'

Conflicts:
	src/main/java/eionet/meta/service/IVocabularyService.java

+ Conflicts resolved.