MFde: Update the German website.

www/de/developers.sgml 1.215 -> 1.216
www/de/news/2008/Makefile 1.1 -> 1.2
www/de/share/sgml/libcommon.xsl 1.27 -> 1.28
www/de/share/sgml/news.xml 1.232 -> 1.233
www/de/share/sgml/press.xml 1.74 -> 1.76

Obtained from: The FreeBSD German Documentation Project