Sync with HEAD

doc/guide/admin/slapdconf2.sdf

doc/guide/admin/slapdconfig.sdf

doc/man/man5/slapd.access.5

include/ldap_log.h

libraries/liblber/io.c

servers/slapd/acl.c

servers/slapd/aclparse.c

servers/slapd/back-bdb/compare.c

servers/slapd/back-bdb/search.c

servers/slapd/back-dnssrv/init.c

servers/slapd/back-ldap/bind.c

servers/slapd/back-ldap/config.c

servers/slapd/back-ldap/modrdn.c

servers/slapd/back-ldif/ldif.c

servers/slapd/back-meta/bind.c

servers/slapd/back-meta/config.c

servers/slapd/back-meta/conn.c

servers/slapd/back-meta/map.c

servers/slapd/back-meta/modrdn.c

servers/slapd/back-monitor/compare.c