* Implement proxyvisor API with dependent device handling
* Use the state endpoint from the API to get the full device state
* Add a deviceConfig db table to store host config separately, and allow deleting config.txt entries
* Expose RESIN_APP_NAME, RESIN_APP_RELEASE, RESIN_DEVICE_NAME_AT_INIT, RESIN_DEVICE_TYPE and RESIN_HOST_OS_VERSION env vars
* Add missing error handler on a stream in docker-utils
