More batch wizard features
Massive language file update

Frank has gotten me official, completed* versions of German, French, and
Dutch language files.

* I have added some text since the last update, so these aren't
_officially_ complete.  But they're damn close.

I have also moved old language files to their own folder for now.  I
don't think I'll be needing them, but I'd like to have them in an easily
discoverable commit just in case.