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.

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

Use a C version of which(1).

Submitted by: Dan Papasian <bugg@bugg.strangled.net>
Reviewed by: jhb

$Id$ -> $FreeBSD$

Added myself as maintainer.

Change `install' to `${INSTALL}' as usual.

Remove the extra slash in ${DESTDIR}/${BINDIR}.

Put in a much less bogus Makefile on advice from Bruce.

Use the better perl script version of which submitted by Wolfram.
Submitted by: Wolfram Schneider <wosch@cs.tu-berlin.de>