* Entity#unique_id defaults to None
* Initial commit entity registry
* Clean up unique_id property
* Lint
* Add tests to entity component
* Lint
* Restore some unique ids
* Spelling
* Remove use of IP address for unique ID
* Add tests
* Add tests
* Fix tests
* Add some docs
* Add one more test
* Fix new test…
* 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