Tech - Team Katana: Honeybadger on Routemaster [#74314758]

Pivotal tracker story [#74314758](https://www.pivotaltracker.com/story/show/74314758) in project *Tech - Team Katana*:

> The migration to Honeybadger also includes migrating services from Sentry.
> 
> This story is about migrating Routemaster service to Honeybadger.
From the README after 2 lines
> You can if you wish just have these send to stdout if no credentials are set.