This commit merges the RPCSEC_GSS integration branch onto the trunk.
Remaining work includes:
* Default to using kadmin/fqdn for SEAM compatibility
* Namespace cleanups and other API tweaks -- this API is not stable yet
* Fix lib/rpc/unit-test testsuite to test RPCSEC_GSS in addition to
AUTH_GSSAPI
Additional work will be tracked in separate tickets. This merge is
bracketed between the tags "tlyu-umich-rpc-merge-pre" and
"tlyu-umich-rpc-merge-post".
ticket: 2578
git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@16467
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