Merge branch 'update-currator-doc-and-experience' into 'master'

doc/permissions.rst

src/viralhostrange/viralhostrangedb/static/css/base.css

...rangedb/templates/viralhostrangedb/datasource_detail.html

...angedb/templates/viralhostrangedb/datasource_history.html

...ange/viralhostrangedb/templatetags/viralhostrange_tags.py

src/viralhostrange/viralhostrangedb/tests/base_test_case.py

...ange/viralhostrangedb/tests/test_changes_notifications.py

src/viralhostrange/viralhostrangedb/tests/test_history.py

...iralhostrange/viralhostrangedb/tests/test_templatetags.py

src/viralhostrange/viralhostrangedb/views.py