This is my first review of the german translation. I explicitely didn't mark anything as "resolved" and leave this to visualfc and the other contributers to the german localization.
I would suggest to move the main menu item "Recent" into the "File" menu as this is the usual place for OS X applications (just beneath the "new" and "open" stuff).

IMHO the translation is pretty complete but I didn't check every string within the application yet. Please take this as a first shot. Any feedback is highly appreciated.