Fixed some parts of the german translation

[MartinKurtz]

Also PLEASE add descriptions to the translation csvs.

[gbakeman]

@MartinKurtz Thank you so much for your work. It looks like you based it off of the latest in @gawindx's repository; we've committed a large update to the de translation recently (PR #8). Could you please base your work off of the latest here in the Dev-2.1 branch and commit any changes you'd like to your request here?

Edit: Also sorry for lack of descriptions on the translations... That's bothered me too whenever I need to reference a translation in code. Right now though I'm trying to avoid putting too much work into WinNUT because I think the best thing to do is rebuild it from the ground up with modern code and features.

[MartinKurtz]

I see, will do when i have a spare few hours