MFen:
1.12 -> 1.16 availability.sgml
1.23 -> 1.27 includes.sgml
1.58 -> 1.63 index.sgml
1.7 -> 1.11 features.sgml
1.23 -> 1.25 docproj/translations.sgml
1.12 -> 1.16 internet.sgml
Fix typo:
releases/index.sgml
Submitted by: sugimura@kitanet.ne.jp
Reviewed by: kuriyama