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.

beforeinstall -> SCRIPTS.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

$Id$ -> $FreeBSD$

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

add a manpage
check for argument 'path'

Change `install' to `${INSTALL}' so that default install flags can be
specified in the top level Makefiles.

Take hardcoded /usr/sbin out of the install target.

My last fix broke things more, thanks to Paul Traina for pointing that out!

>From Jordan

Fix braindeadness in my makefile

Fixed Makefile problem pointed out by Piero Serini

Manctl utility:
compresses man pages
uncompresses man pages
purges old formatted man pages (not implemented yet)

currently still under development, but worth trying out (IMHO)
a man page ;-) must still be written for manctl - to follow shortly