[kradio-user] Some fixes for the German translation

[Frederik S. <sch...@gm...>]

Hi,

I just stumbled over this application and found some issues in the 
German translation. Patch is attached.

Another thing I noticed was that there is a string saying users should 
report bugs to bugs.kde.org but there is no KRadio product there.
So please either change that string ... or do the right thing and move 
development of your app to the KDE infrastructure. :D

For KDE application you can run 'fixuifiles' from kdesdk/scripts on 
your project to remove unneeded stuff from Qt UI files. Patch 
attached.

In README.translations the "one file per plugin" might be out-dated.

Regards