Added ntopng
Upgrade ElasticSearch from 1.3.x to 1.4.x
Upgrade Riak from 2.0.1 to 2.0.2
Upgraded Docker from 1.3.1 to 1.3.2
Upgrade RabbitMQ from 3.4.1 to 3.4.2
Upgraded Mesos from 0.20.1 to 0.21.0
Upgraded Marathon from 0.7.3 to 0.7.5