Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Add libjail, a (somewhat) simpler interface to the jail_set and jail_get
system calls and the security.jail.param sysctls.

Approved by: bz (mentor)

After positive feedback from a few folks, activate a switchover to
using killall.c instead of the perl version that depends on procfs.
The C version uses sysctl(). The program is based on a hack that was
originally written about 6 years ago and has evolved somewhat since then.
(which is why it is a superset of killall.pl, rather than being a clone.)

With apologies to: wosch

$Id$ -> $FreeBSD$

Added myself as maintainer.

This commit was generated by cvs2svn to compensate for changes in r9316,
which included commits to RCS files with non-trunk default branches.

Our Perl oracle hit again: Wolfram Schneider's killall utility.
Kills processes by name instead of by UID.

(Man page by me.)

Submitted by: wosch@cs.tu-berlin.de (Wolfram Schneider)