This patch add installation of collectd-sensubility as part of collectd image.
The package is available in centos-release-opstools repo.
Collectd-sensubility aims provide possibility to switch from Sensu based
availability monitoring solution to monitoring solution based on
collectd with AMQP-1.0 messaging bus.
Upstream is here: https://github.com/paramite/collectd-sensubility
Change-Id: I22a26374ee00e93b4f52ec0c4f1152ca1ad777e6
057d605d9b