[Gretl-devel] de.po update

Hi, I'm attaching the German translation update de.po. I don't have a read-write git checkout here right now, sorry, so could someone commit this for me? Thanks. And a question: Is "Working directory tooltip" really a translatable string meant for the user, including the literal "tooltip"? Finally, if we could wait with the release for a few days such that the updated translations can be briefly tested (also on the Windows snapshots) that would be nice. thanks, sven