jira/PJSM-209

Please review...

http://issues.opennms.org/browse/PJSM-209

The config file jmx-datacollection-config.xml is available via 
  http://opennms-host:8980/opennms/rest/config/jmx




Each of the other existing *ConfigResource classes using LOG.info for this kind of message. I just wanted to stay consistent with the other implementation.