require it to only be accessible by its owner, otherwise ignore it.

calling value_find with already-normalized DNs

propagate peer creds if no explicit PEERCRED facility exists. Works
on Solaris 8.

Fixed minor compile errors in LDAP_LOG debug statements.

due to res_() routines).  Change all res_() dependent routines to
share same mutex.

backends to be called directly, instead of having to wrap every function.
Delete unneeded wrappers.