bzip2: remove locally added __FBSDID

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D42700

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.

Resolve conflicts.

Virgin import (trimmed) of Bzip2 version 1.0.5.

Resolve conflicts.

Virgin import (trimmed) of Bzip2 version 1.0.4.

Make bzip2 support working again after bzip2 upgrade. This time commit
BZ_NO_COMPRESS support to the bzip2 sources directly (yes, this takes file
off the vendor branch, but looks like bzip2 maintainer doesn't care), so that
it will not be removed when the next upgrade is performed. Also, add a short
note on how to test bzip2 support.

Pointy hat to: obrien

Correct comment (libz -> libbz2) and remove useless full path to zutil.h
while I am here.

Virgin import (trimmed) of Bzip2 version 1.0.3.

Virgin import (trimmed) of Bzip2 version 1.0.2

Virgin import (trimmed) of Bzip2 version 1.0.1.