Malte,
German is fully translated on the translation server. I could imagine that Carl and the translation team in Heidelberg would be interested in comparing with your version. I would rather have one german translation in dotLRN than several unless the translations are systematically different such as one being formal and the other casual.
Writing a script to commit nightly is possible. I don't know if I'll get around to that though. I was hoping it would be sufficient to commit every other weeks.
/Peter