add status revised
DDBAAS-142: software during development
DDBAAS-139: Organisations-Unit 'LicensedOrgs' für Ingest zugelassene Organisationen / software during development
new methods for status-change + export-branch in LDAP
add tests for new methods
correct subsector name
add javadocs
DDBAAS-139 (during development): 
- implementatiion of new methods: 'approve' and 'withdraw' for Organisations
- Implementation for new RESTful endpoint '/ ingest' (former "export")
- other fixes
Merge origin/DDBAAS-139 into DDBAAS-139

Conflicts:
	src/main/java/de/fiz/ddb/aas/services/RESTfulExport.java
	src/main/java/de/fiz/ddb/aas/services/RESTfulOrganisation.java
DDBAAS-139: 
Corrections and further development: 
               Adding a simple list of organizations for ingest
Merge remote-tracking branch 'origin/DDBAAS-139' into develop