Translate German comments, fix some ws

Change-Id: Ida67ce193ad032e2a1855e4380626f805514c2f2
Reviewed-on: https://gerrit.libreoffice.org/11103
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>