usr.sbin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

usr.sbin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Purge more stray embedded $FreeBSD$ strings

These do not use __FBSDID but instead use bare char arrays.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41957

keyserv: Use C89 function definitions.

Also use more accurate function pointer types, and trim some duplicate
(but incomplete) function prototypes.

Reviewed by: zlei
Differential Revision: https://reviews.freebsd.org/D39533

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.

Rename all symbols in libmp(3) to mp_*, just like Solaris.

The function pow() in libmp(3) clashes with pow(3) in libm. We could
rename this single function, but we can just take the same approach as
the Solaris folks did, which is to prefix all function names with mp_.

libmp(3) isn't really popular nowadays. I suspect not a single
application in ports depends on it. There's still a chance, so I've
increased the SHLIB_MAJOR and __FreeBSD_version.

Reviewed by: deischen, rdivacky

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

Cleanup of userland __P use

$Id$ -> $FreeBSD$

Use err(3). Put includes in alphabetical order.
Rewrote man page in mdoc format.
Document -v and -p flags.

Import of the keyserv daemon needed for Secure RPC.

This version supports both the keyserv v1 and v2 protocols. It uses the
new AF_LOCAL transport so that only local processes can use it for
storing/retrieving keys, and it uses the SCM_CREDS kernel hack for
authentication. With these two modifications, we don't need the keyenvoy
program normally used with RPC 4.0.

Note that if libdes.so.3.x is present on the system when keyserv
is started, Secure RPC will run with normal DES encryption. If not,
everything falls back to RC4 with a 40 bit key.