changes derived from Ian Logan's patch

When calling ldap_search looking for "supportedSASLMechanisms",
a NULL string should be passed to ldap_search and not a NULL pointer.

Make numerous formating changes.

of release INSTALL document

Ripe out ldif2... cruft
LDBM database format should be moved to a separate 'SLAPD internals' guide

more work to be able before it to generate the INSTALL document.

term.  Require applicable notices to be reproduced (instead of
just the OPL notice).

Use AC_FMEMCPY where appropriate (-llber)

Subject: Bug in ldap_parse_result function (ITS#643)

If a user is using ldap result to obtain search results one message
at a time and calls ldap_parse_result on one of those messages, i.e.
the message chain does not have an LDAP_RES_SEARCH_RESULT message
in the chain, ldap_parse_result returns a LDAP_DECODING_ERROR
instead of LDAP_NO_RESULTS_RETURNED.

(IETF namedref draft is now defunct)

SAFEMEMCPY.  AC_FAST_MEMCPY has a len==1 optimization for use
in -llber.