* Refactor tellstick code for increased readability. Especially highlight if "device" is a telldus core device or a HA entity.
* Refactor Tellstick object model for increased clarity.
* Update comments. Unify better with sensors. Fix typo bug. Add debug logging.
* Refactor tellstick code for increased readability. Especially highlight if "device" is a telldus core device or a HA entity.
* Refactor Tellstick object model for increased clarity.
* Update comments. Unify better with sensors. Fix typo bug. Add debug logging.
* Fix lint issues.
* Remove global variable according to hint from balloob.