packages: krb5: update to 1.11

packages: krb5: update to 1.11

The version currently in openwrt (1.8) has known security issues (see
the release announcements for the subsequent releases) and is quite
outdated (March 2010 as compared to Dec 2012).

The following patch bumps the version and also cleans up the build
script (mostly removing dead configure options, removing obsolete
patches, etc).

The testing binary "sclient" is dropped and kadmind is reintroduced in
krb5-server (I know it was removed to "save space", but kadmind is
around 60kB out of a total of around 700kB for a krb5-server
installation and an installation without kadmind is pretty gimped).

I hope this can be applied both to trunk and the attitude_adjustment
branch.

Signed-off-by: David Härdeman <david@hardeman.nu>
git-svn-id: svn://svn.openwrt.org/openwrt/packages@35700 3c298f89-4303-0410-b956-a3cf2f4a3e73