Fragile config.json
Currently, a single mistake in config.json would make all devices n/a.

I wonder if possible each device has its own "config.json", thus to single out that device if that plugin mis-configurated. 

Also how could homebridge (e.g. in Docker) be more stable and robust?  maybe:
- please stop homebridge continuously reboot and generate error log;
- How to report if node.json global server down or not reachable, or npm package corrupt; 
- health check for each plugin?  

Today I notice my docker ID has been changed, thus not able to ssh login to. Strange! how could that be? Does google (node.js) haven access to my docker container? or Synology can? 

later on, I notice also one of plugin was uninstalled and I am not conscious about that! very strange. (for more details, I manually installed @solowalker27's [onkyo git](https://github.com/solowalker27/homebridge-onkyo/issues/5#issue-480239170), which isn't yet in [npm](https://www.npmjs.com/), but in ui-x shows link to @ToddGreenfield, the ver.0.7.1. should be correct coming from prior). 
