Implement enhancement for OPENDJ-677. The connection attribute under cn=monitor now contains the number of persistent searches on going if there are any, as shown below. If there are no persistent search, then nothing is displayed.

dn: cn=Client Connections,cn=monitor
connection: connID="4" connectTime="20130129101941Z" source="127.0.0.1:50927" destination="127.0.0.1:1389" ldapVersion="3" authDN="cn=Directory Manager,cn=Root DNs,cn=config" security="none" opsInProgress="1"" persistentSearches="1"