MFbed: Content update and various fixes
share/sgml/freebsd.dsl spelling fixes
books/handbook/mail/chapter.sgml spelling fixes
both spotted by: stb
books/faq/book.sgml 1.506 -> 1.510
share/sgml/mailing-lists.ent 1.9 -> 1.10
books/handbook/kernelconfig/chapter.sgml 1.95 -> 1.98
books/handbook/ports/chapter.sgml 1.183 -> 1.184
books/handbook/desktop/chapter.sgml 1.13 -> 1.15
books/handbook/disks/chapter.sgml 1.131 -> 1.141
books/handbook/cutting-edge/chapter.sgml 1.173 -> 1.178
books/handbook/mirrors/chapter.sgml 1.257 -> 1.266
books/handbook/linuxemu/chapter.sgml 1.84 -> 1.85
books/handbook/x11/chapter.sgml 1.105 -> 1.107