Remove $FreeBSD$: one-line bare tag

Remove /^\s*\$FreeBSD\$$\n/

Assorted grammar, spelling and punctuation fixes.

PR: 203336, 203339
Submitted by: espeyb@rpi.edu, themesta@gmail.com
MFC after: 1 week

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

Fix a couple of typos.

PR: docs/148891
Submitted by: olgeni
MFC after: 1 week

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.

add a set of scripts that I posted to -current last year. This makes
debugging kernels and kernel modules much easier. It will automaticly
locate kernel source, extract kernel module information, and rerun gdb
to load kernel module symbol information (if available by compiling module
w/ debuging symbols).

I have not run these recently, so may need to be updated to work with
gdb6. Feel free to fix as appropriate for -current.

Explain what all this is about.