Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Update ipfilter 4.1.28 --> 5.1.2.

Approved by: glebius (mentor)
BSD Licensed by: Darren Reed <darrenr@reed.wattle.id.au> (author)

Resolve conflicts (and believe me...you don't want to know).

* Someone imported a lot of files with the wrong CVS tag, so lots of files need
that fixed in them....
* Keep unnecessary files out of the non-vendor part of this CVS repository.

This commit was generated by cvs2svn to compensate for changes in r145510,
which included commits to RCS files with non-trunk default branches.

import ipfilter 4.1.8 into the vendor branch

Import ipfilter 3.4.35 onto vendor branch

Import IP Filter 3.4.4 into FreeBSD-current

Import of ipfilter 3.3.3 in anticipation of its revival.
More to come in the next days.

Import trimmed version of ipfilter 3.2.7.

Obtained from: Darren Reed via http://cheops.anu.edu.au/~avalon/

Import ipfilter 3.2.3

Import ipfilter 3.2.1 (update from 3.1.8)