MFde: Update the German website

www/de/developers.sgml 1.195 -> 1.199
www/de/index.xsl 1.163 -> 1.164
www/de/community/irc.sgml 1.3 -> 1.4
www/de/share/sgml/libcommon.xsl 1.16 -> 1.23
www/de/share/sgml/navibar.l10n.ent 1.20 -> 1.21
www/de/share/sgml/news.xml 1.167 -> 1.173
www/de/share/sgml/press.xml 1.60 -> 1.66
www/de/support/bugreports.sgml 1.4 -> 1.5

Obtained from: The FreeBSD German Documentation Project