Remove $FreeBSD$: two-line nroff pattern

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

mdoc: add missing -width argument to Bl -tag.

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

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

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.

Merge r203027 from head:

Correct the HISTORY section of these man pages to show when the function,
not the "manual page example" was introduced.

Approved by: ed (mentor, implicit)

Correct the HISTORY section of these man pages to show when the function,
not the "manual page example" was introduced.

Approved by: ed (mentor, implicit)
MFC after: 1 week

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

Remove an extra (commented out) .Sh HISTORY section heading, to avoid
the risk of "shadowing" the following .El request, strip eol spaces
and delete an empty line to fix mdoc warnings.

MFC after: 3 days

Move the Internet Society copyright message so that it appears in the
formatted page as well as the source.

Add a new extensible GSS-API layer which can support GSS-API plugins,
similar the the Solaris implementation. Repackage the krb5 GSS mechanism
as a plugin library for the new implementation. This also includes a
comprehensive set of manpages for the GSS-API functions with text mostly
taken from the RFC.

Reviewed by: Love Hörnquist Åstrand <lha@it.su.se>, ru (build system), des (openssh parts)