MFen security/chapter.sgml: 1.228 -> 1.266:

Local revisions: 1.1.1000.3[1], 1.1.1000.4[2], 1.1.1000.5-1.1.1000.9[3]

Original work:
[1] Helvin (FreeBSD China Forum)
[2] ac (FreeBSD China Forum)
[3] delphij

Also, adjust several build supporting infrastructure to build new
firewall/ chapter.

Obtained from: The FreeBSD Simplified Chinese Project CVS