Rename PostfixadminDb, RoundcubeDb without the Db suffix.
Make PostfixadminDb a regular plugin.
- [DH] lib/prune/plugins/agendav.rb
- [DH] lib/prune/plugins/davical.rb
- [DH] lib/prune/plugins/dovecot.rb
- [DH] lib/prune/plugins/postfixadmin.rb
- [DH] lib/prune/plugins/roundcube.rb
- [DH] lib/prune/plugins/roundcube_db.rb