
This commit adds support for configuring the mqtt logstash output plugin. This will enable us to push events from our logstash workers to firehose.o.o. The plugin can be found here: https://github.com/kompa3/logstash-output-mqtt (althought it's README is from a template and you have to look at the inline docs for how to use it) and the gem is published on rubygems.org here: https://rubygems.org/gems/logstash-output-mqtt/ Change-Id: I7255f6c256ab3e3ca33caf69b71bf4ffab02c1bb