* Fix MQTT retained message not being re-dispatched
* Fix tests
* Use paho-mqtt for retained messages
* Improve code style
* Store list of subscribers
* Fix lint error
* Adhere to Home Assistant's logging standard
"Try to avoid brackets and additional quotes around the output to make it easier for users to parse the log."
- https://home-assistant.io/developers/development_guidelines/
* Add reconnect tests
* Fix lint error
* Introduce Subscription
Tests still need to be updated
* Use namedtuple for MQTT messages
... And fix issues
Accessing the config manually at runtime isn't ideal
* Fix MQTT __init__.py tests
* Updated usage of Mocks
* Moved tests that were testing subscriptions out of the MQTTComponent test, because of how mock.patch was used
* Adjusted the remaining tests for the MQTT clients new behavior - e.g. self.progress was removed
* Updated the async_fire_mqtt_message helper
* ✅ Update MQTT tests
* Re-introduce the MQTT subscriptions through the dispatcher for tests - quite ugly though... 🚧
* Update fixtures to use our new MQTT mock 🎨
* 📝 Update base code according to comments
* 🔨 Adjust MQTT test base
* 🔨 Update other MQTT tests
* 🍎 Fix carriage return in source files
Apparently test_mqtt_json.py and test_mqtt_template.py were written on Windows. In order to not mess up the diff, I'll just redo the carriage return.
* 🎨 Remove unused import
* 📝 Remove fire_mqtt_client_message
* 🐛 Fix using python 3.6 method
What's very interesting is that 3.4 didn't fail on travis...
* 🐛 Fix using assert directly
* Migrate mqtt to async
* address paulus comment / convert it complet async
* adress paulus comment / remove future
* Automation triggers should be async
* Fix MQTT async calls
* Show that event helpers are callbacks
* Fix tests
* Lint
