* Migrate callbacks to use schedule_update_ha_state
* Migrate MQTT sensor callback to async
* Migrate wemo to not update inside schedule_update_ha_state
* Make MQTT switch async
* Fix nx584 test
* Migrate tellstick callback
* Migrate vera callback
* Alarm control panel - manual: use async callbacks
* Run the switch rest tests that work
* Add power attribute to switch.
* Move device_state_attributes into base class.
* Fix imports following refactor.
* Bump pyvera version - should add contributed support for older (UI5) version dimmers and locks.
* Refactor device lookup to be based on vera classes, push category back into library.
* Add generic power attribute, fix inherited class order bug.
* Tidy.