MFde: Update the German website.

www/de/administration.sgml 1.15 -> 1.16
www/de/developers.sgml 1.181 -> 1.186
www/de/docproj/sgml.sgml 1.27 -> 1.28
www/de/docs/books.sgml 1.29 -> 1.30
www/de/java/index.sgml 1.26 -> 1.28
www/de/share/sgml/news.xml 1.141 -> 1.146

Obtained from: The FreeBSD German Documentation Project