ITS #2121 submitted by Dave Steck <dsteck@novell.com> with minor changes.

ITS #2121 submitted by Dave Steck <dsteck@novell.com> with minor changes.
Patch to allow referrals to be read on synchronous non-search operations.
Treat referrals the same way as MatchDN or ErrorString values.
Store them in the ld structure and provide an option for ldap_get_option
to retrieve them