Remove $FreeBSD$: one-line sh pattern

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

Remove WARNS keylogin build fine with clang and gcc

Convert to usr.bin/ to LIBADD
Reduce overlinking

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.

Build usr.bin/ with WARNS=6 by default.

Also add some missing $FreeBSD$ to keep svn happy.

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

$Id$ -> $FreeBSD$

Fixed DPADD.

Don't override the (correct) default for SRCS or MAN1.

Replaced bogus Lite1 (?) Id by $Id$. The key server files were
mis-imported so it is hard to tell where they came from, but at
least in Lite2 they don't have useful Makefiles, and I rewrote
most of the Makefile.

Import keylogin.

This is the program used to loadsecret keys into the keyserv on the
local host.

Note: on some platforms, keylogin is automatically invoked by
/usr/bin/login. We don't have any burning need for this yet.