reflect changes applied

CHANGES

 OpenLDAP 2.3 Change Log
 
 OpenLDAP 2.3.18 Engineering
-	Fixed slapd wake_listener
+	Fixed slapd syncrepl variable used before set bug (ITS#4331)
+	Updated slapd-meta retry capabiltiies (ITS#4328)
+	Fixed slapo-pcache attrsets issues (ITS#4316)
+	Fixed slapd-ldap idassert resource leak (ITS#4326)
+	Fixed slapd-meta nretries issue (ITS#4059)
+	Fixed slapd wake_listener loses wakes (ITS#4343)
+	Fixed slapd connection manager issue (ITS#4338)
+	Fixed slapd hanlding of old style configuration directives (ITS#4341)
 	Removed slapd-bdb/hdb extraneous yields (ITS#3950)
 	Build Environment
 		Removed problematic Linux sched_yield(2) workarounds (ITS#3950)
 	Documentation
 		Updated release documents
+		Updated misc. manual pages
 
 OpenLDAP 2.3.17 Release
 	Fixed slapd anonymous proxy authorization issue (ITS#4320)

README

@@ -19,9 +19,7 @@ REQUIRED SOFTWARE
         POSIX REGEX software (required)
 
     SLAPD:
-        BDB and HDB backends require Sleepycat Berkeley DB 4.2
-        LDBM backend requires a compatible database manager
-            [Berkeley DB, GDBM, etc.]
+        BDB and HDB backends require Sleepycat Berkeley DB 4.2 or later
 
     SLURPD:
         LTHREAD compatible thread package