should improve readability and (hopefully) decrease traffic on openldap-software; sorry I can't test it right now

including:
- fixes according to new API changes
- closing db connection in connection_destroy callback, not unbind
- support of new schema code, samples changed accordingly
- support for multiple objectclasses (to distinguish from unique objectclass-to-tables mapping)
- auto 'ref' attribute support
- samples now include illustrations of using these 2 features to make named referrals as described in ldapext-namedref draft

more to come:
- documentation update
- different improvements to be more close to native directory (after beta?)

privs, additive/substractive rules, and rule continuation.  Existing
rules that use 'defaultaccess none' should be 100% compatible.  Rules
that rely other defaultaccess settings will require addition of
explicit clauses granting the access.
Needs additional testing and tuning of logs

Set defaultaccess to 'read' in distribution slapd.conf and add warnings
Set schemacheck to 'on' in distribution slapd.conf and add warnings

Both do not return anything useful.