Add other schema references (nameref, alias, subentry) to core.schema.

Add openldap.schema (currently empty except for a few comments) to
hold OpenLDAP specific schema items (such as for cn=monitor).

servers/slapd/schema/core.schema

@@ -6,6 +6,11 @@
 #	RFC2251-RFC2256 (LDAPv3)
 #	RFC2079 (URI)
 #
+# and other "core" items
+#   ldapsubentry draft
+#	named referrals draft
+#	alias draft
+#
 
 # Standard X.501(93) Operational Attribute Types from RFC2252
 

servers/slapd/schema/openldap.schema

+# $OpenLDAP$
+#
+# This file contains schema items specific to OpenLDAP software.
+#
+
+#
+# This file *should* only depend upon core.schema
+#
+
+# 
+# slapd cn=monitor items
+#
+
+# 
+# slapd cn=config items
+#
+
+#
+# other slapd items
+#