Merge from English version:
handbook.sgml : 1.72 -> 1.75 basics/chapter.sgml : 1.8 -> 1.9 bibliography/chapter.sgml : 1.9 -> 1.10 contrib/chapter.sgml : 1.12 -> 1.34 install/chapter.sgml : 1.10 -> 1.11 mirrors/chapter.sgml : 1.10 -> 1.12 pgpkeys/chapter.sgml : 1.8 -> 1.11 ppp-and-slip/chapter.sgml : 1.10 -> 1.11 security/chapter.sgml : 1.12 -> 1.13 staff/chapter.sgml : 1.13 -> 1.21
Submitted by: motoyuki