Code review comment for lp://staging/~thomas-voss/location-service/expose-engine-state-information

This really is looking good now, thanks!

So one last concern is the silo's current build status: "Failed to build (location-service/vivid, location-service/yakkety)."

A few builds are failing, not sure which are expected: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/landing-049/+packages