NMS-6667 and NMS-6668: Initial revision of LdapMonitor and LdapsMonitor

http://issues.opennms.org/browse/NMS-6667
http://issues.opennms.org/browse/NMS-6668
-Then, if it succeeds, it will attempt to establish an LDAP connection and do a simple a search.
+Then, if it succeeds, it will attempt to establish an LDAP connection and do a simple search.