drain recieves and acts upon application logs from heroku (it is added as a log drain for the microryza rails app)
At present it:
- publishes hits to redis (consumed by Microryza/live)
- pushes dyno memory usage stats to librato (https://metrics.librato.com/metrics/dyno.memory_total)
- pushes postgres usage stats to librato (https://metrics.librato.com/metrics/postgres)
- annotates deploys in librato