*If you are not concerned with logging, you can ignore this change.*  Added a `Logging` variable to the main Nest account device, which has a default value of `0`. If you set Logging to `1` and are configured to log [type 06](http://wiki.micasaverde.com/index.php/Luup_Debugging#Getting_around) messages to your `/var/log/cmh/LuaUPNP.log` file, you will see all device variables being set, even if their old and new values are the same. [iss15](https://github.com/watou/vera-nest-thermostat/issues/15)