Update for Homebridge V2 if required

[calederer]

There are possible breaking changes with the release of Homebridge V2.
https://github.com/homebridge/homebridge/wiki/Updating-To-Homebridge-v2.0

[oogje]

Thanks for the heads-up. Nothing stands out to me as problematic. But I don't have the capacity to look through all the version file differences for potential issues. Fingers crossed.