Jormungandr: init drop_db
Type: archive ext_codes_map
Jormungandr: add cache on authentication
Jormungandr: instance add has_external_code method
Jormungandr: instance_manager improve caching
Jormungandr: Uri, drop dp usage
All: add publication date
Jormungandr: add timeout to cache on has_access
Jormungandr: add publication_date
Jormungandr: invalidate cache there's a new publication_date
Jormungandr: add test authentication
Jormungandr: enhance authentication process
Jormungandr: add comments on UT