gitignore .mo files

(cherry picked from commit 88d8670bc8a61f10b25c5d954922bd1031f43685)
tweaked labels and other displayed text, refs #10440
adapted citation string, refs #10440
some more translations, #10440
register translations before including dependencies so that our translations get precedence
Merge branch 'develop' into feature/types
added missing import, refs #10440
imports and whitespace cleanup, refs #10440
added Publication subtypes Journal and EditedVolume, refs #10440
merge Article Journal and Article Edited Volume into Article, refs #10440
fixed translations, schema and initialization, refs #10440
use 'Publication' as meta_type so that ParentGetter works, refs #10440
replaced more instances of "Article Journal" and "Article Edited Volume", refs #10440
additional publicationlisting viewlet that's visible on the new Publication subtypes and also shows Articles, refs #10440
reverted meta_type as it breaks initialisation, refs #10440
use RECENSIO_FIXTURE as a base
don't include plone.app.theming as it breaks tests
Merge branch 'develop' of https://github.com/syslabcom/philrom.policy into develop
Merge branch 'develop' into feature/types
added test_publication, refs #10440