'RELENG_2_2_5_RELEASE'.

This commit was manufactured to restore the state of the 2.2.5-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

added "#define PRECISE_SYMLINKS" to the amd config header - this
solves a problem with the amd "-type:=direct" mounts and /bin/sh
giving a "readlink failed" if you cd'ed to a "-type:=direct" mounted
directory

i got this from david mazieres as a result of giving him our (mostly
doug rabsons) fixes for the amd "-type:=direct" mounts and telling
them (also some NetBSD people were interested) about my only problem
running these fixes (which is now solved too :-)

Obtained from: amd-upl102

The version 2 support has been tested (client+server) against FreeBSD-2.0,
IRIX 5.3 and FreeBSD-current (using a loopback mount).  The version 2 support
is stable AFAIK.
The version 3 support has been tested with a loopback mount and minimally
against an IRIX 5.3 server.  It needs more testing and may have problems.
I have patched amd to support the new variable length filehandles although
it will still only use version 2 of the protocol.

Before booting a kernel with these changes, nfs clients will need to at least
build and install /usr/sbin/mount_nfs.  Servers will need to build and
install /usr/sbin/mountd.

NFS diskless support is untested.

Obtained from: Rick Macklem <rick@snowhite.cis.uoguelph.ca>

Submitted by:	Christoph Kukulies <kuku@gilberto.physik.rwth-aachen.de>

Sumbitted by: Boyd Faulkner <faulkner@mpd.tandem.com>