Merge from English version.
y2kbug.sgml 1.18 -> 1.20 docproj/current.sgml 1.8 -> 1.10 docproj/sgml.sgml 1.6 -> 1.7 docproj/translations.sgml 1.17 -> 1.21 releases/index.sgml 1.26 -> 1.27
Submitted by: Yasuhiro Fukuma <yasuf@big.or.jp>
Motoyuki Konno <motoyuki@freebsd.org>