Updated Kibana to 4.6 and Logstash to 2.4
Updated Kibana to 4.6 and Logstash to 2.4

ElasticSearch version was automatically bumped (to 2.4) due to the repo
hosting 2.x.

MainNerve/NetforceDefender,MainNerve/NetforceDefender,MainNerve/NetforceDefender