MFbed: Update German translations.
books/handbook/advanced-networking/chapter.sgml 1.222 -> 1.234 [*]
books/handbook/disks/chapter.sgml fixes only
books/handbook/linuxemu/chapter.sgml fixes only
books/handbook/x11/chapter.sgml fixes only
- add the section "NIS/YP"
Submitted by: Johann Kois <J.Kois@web.de>