MFbed: Content update and various fixes

books/faq/book.sgml: 1.494 -> 1.500
books/handbook/boot/chapter.sgml: 1.46 -> 1.49
books/handbook/kernelconfig/chapter.sgml: 1.84 -> 1.89
books/handbook/disks/chapter.sgml: 1.114 -> 1.116
books/handbook/cutting-edge/chapter.sgml: 1.154 -> 1.155
books/handbook/security/chapter.sgml: 1.117 -> 1.120
books/handbook/serialcomms/chapter.sgml: 1.68 -> 1.71
books/handbook/ppp-and-slip/chapter.sgml: 1.93 -> 1.94
share/sgml/mailing-lists.ent 1.8 -> 1.9
share/sgml/teams.ent 1.5 -> 1.6
books/handbook/mail/chapter.sgml fixes only
books/handbook/config/chapter.sgml fixes only