New branch for #17912 + DAO methods for the deletion job to pick from the queue. Refs #17912.
First draft working version of the background source deletion job. Refs #17912.
Finalization of the source deletion job. Refs #17912.
Remove "Work in progress" disclaimer. Refs #17912.
Merge branch 'master' of https://github.com/eea/eionet.contreg