Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

- Update FreeBSD Heimdal distribution to version 1.5.1. This also brings
several new kerberos related libraries and applications to FreeBSD:
o kgetcred(1) allows one to manually get a ticket for a particular service.
o kf(1) securily forwards ticket to another host through an authenticated
and encrypted stream.
o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1)
and other user kerberos operations. klist and kswitch are just symlinks
to kcc(1) now.
o kswitch(1) allows you to easily switch between kerberos credentials if
you're running KCM.
o hxtool(1) is a certificate management tool to use with PKINIT.
o string2key(1) maps a password into key.
o kdigest(8) is a userland tool to access the KDC's digest interface.
o kimpersonate(8) creates a "fake" ticket for a service.

We also now install manpages for some lirbaries that were not installed
before, libheimntlm and libhx509.

- The new HEIMDAL version no longer supports Kerberos 4. All users are
recommended to switch to Kerberos 5.

- Weak ciphers are now disabled by default. To enable DES support (used
by telnet(8)), use "allow_weak_crypto" option in krb5.conf.

- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings
disabled due to the function they use (krb5_get_err_text(3)) being
deprecated. I plan to work on this next.

- Heimdal's KDC now require sqlite to operate. We use the bundled version
and install it as libheimsqlite. If some other FreeBSD components will
require it in the future we can rename it to libbsdsqlite and use for these
components as well.

- This is not a latest Heimdal version, the new one was released while I was
working on the update. I will update it to 1.5.2 soon, as it fixes some
important bugs and security issues.

Fix conflicts after heimdal-1.1 import and add build infrastructure. Import
all non-style changes made by heimdal to our own libgssapi.

While checking over the libraries for 7.0-REL Kris found the following
libraries had not had their versions bumped relative to 6.3-REL but
had indeed been changed. We need to bump their version so they can be
properly added to the compat6x port:

libasn1.so.8 libgssapi.so.8 libhdb.so.8 libkadm5clnt.so.8
libkadm5srv.so.8 libkafs5.so.8 libkrb5.so.8 libobjc.so.2

MFC After: 1 day

Bump the shared library version number of all libraries that have not
been bumped since RELENG_5.

Reviewed by: ru
Approved by: re (not needed for commit check but in principle...)

Update build infrastructure for Heimdal 0.6.

Zap now-unused SHLIB_MINOR

Update build infrastructure after import of Heimdal Kerberos 2002/08/29.

Bump major library version of all Heimdal Kerberos libraries
after import from KTH repository circa 2002/02/17.

update infrastructure for heimdal 0.3f

This commit was generated by cvs2svn to compensate for changes in r56067,
which included commits to RCS files with non-trunk default branches.

Userland build of Kerberos5 (AKA Heimdal). More to come.

This is not ready for primetime yet! Please hold off on the bug reports.