Sync with HEAD

contrib/slapd-modules/acl/README

contrib/slapd-modules/acl/posixgroup.c

doc/man/man5/slapo-syncprov.5

doc/man/man5/slapo-unique.5

doc/man/man8/slapcat.8

include/slapi-plugin.h

libraries/libldap/url.c

libraries/librewrite/rewrite-int.h

libraries/librewrite/rule.c

servers/slapd/Makefile.in

servers/slapd/abandon.c

servers/slapd/aci.c

servers/slapd/acl.c

servers/slapd/aclparse.c

servers/slapd/back-bdb/search.c

servers/slapd/back-ldap/bind.c

servers/slapd/back-ldap/config.c

servers/slapd/back-ldap/search.c

servers/slapd/back-meta/back-meta.h

servers/slapd/back-meta/bind.c