Merge following changes in the English version.
1.30 -> 1.37 cutting-edge/chapter.sgml
Submitted by: Hiroki Sato <hrs@geocities.co.jp>
Shun SUZUKI <si006@ccm.gs.niigata-u.ac.jp> SUGIMURA Takashi <sugimura@jp.FreeBSD.org>
References: [doc-jp 6820,6875,6986]