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.

tcsh: fix abort in cleanup_until(), caused by internal xgetpass()

The xgetpass() function pushes a cleanup entry for &osa, but then
attempts to flush the stack until an entry matching &sa. The two
object pointers do not match, so the stack is popped too much,
and then cleanup_until calls abort() when it unexpectedly hits
the bottom of the cleanup stack.

Reported by: Paul B. Mahol, onemda at gmail.com,
Pietro Cerutti, gahr at gahr.ch
PR: bin/124191
Reviewed by: mp, kris
MFC after: 2 days

Import of tcsh-6.15.00

Import of tcsh-6.14.00

Import of tcsh-6.13.00

Import of tcsh-6.12.00

Import tcsh-6.11

Initial import of slightly trimmed tcsh 6.10

Offical fixes to allow longer lines in the history and tweak expand_lex()
useage.

Import the latest version of the 44BSD C-shell -- tcsh-6.09.