DCP-o-matic 2.14.0 in string freeze: translators required!

[carl]

With commit aa4fa75 I'll put DCP-o-matic into "string freeze" until
2.14.0 is released. That means I won't change any of the translatable
strings until then.

This would be a great time for all you lovely translators to update the
translations for DCP-o-matic!

Many of the current translations have significant gaps, as you can see by
checking the i18n pages.

Any help that you can provide is very much appreciated!

Do let me know if there's anything I can help with. Also do let me know if you intend to provide translations but don't have time at the moment; then I can plan the release schedule accordingly.