Merge the following from the English version:
1.103 -> 1.105 books/handbook/introduction/chapter.sgml
1.42 -> 1.46 books/handbook/kernelconfig/chapter.sgml
1.104 -> 1.108 books/handbook/l10n/chapter.sgml
Submitted by: Hiroo Ono <hiroo at oikumene dot gcd dot org>
Reference: [doc-jp-work 1037]