usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

Revert most part of 200420 as requested, as more review and polish is
needed.

Remove unneeded header includes from usr.bin/ except contributed code.

Tested with: make universe

- Import the HEAD csup code which is the basis for the cvsmode work.

Remove leaf node WARNS?=2 (that mainly I added). This should
help the GCC3 transition and CURRENT in general.

WARNS=2 fixup.
kill 'register' keyword.

Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]).

Add canonical 32bit crc as alorithm 3.

PR: 4615
Reviewed by: phk
Submitted by: Mike Meyer <mwm@shiva.the-park.com>

Import Lite2's src/usr.bin/cksum. The Makefile is still on the vendor
branch and will temporarily give bogus hard links cksum[.1] -> sum[.1].

BSD 4.4 Lite Usr.bin Sources