Flux-led

What's Changed
* Update model description for 0x04 by bdraco in https://github.com/Danielhiversen/flux_led/pull/135


**Full Changelog**: https://github.com/Danielhiversen/flux_led/compare/0.24.8...0.24.9

What's Changed
* Add support for the 0x21 models (same as 0x41) by bdraco in https://github.com/Danielhiversen/flux_led/pull/133


**Full Changelog**: https://github.com/Danielhiversen/flux_led/compare/0.24.7...0.24.8

What's Changed
* Add workaround for devices that sometimes push the wrong power state by bdraco in https://github.com/Danielhiversen/flux_led/pull/131


**Full Changelog**: https://github.com/Danielhiversen/flux_led/compare/0.24.6...0.24.7

What's Changed
* Add support for power state push updates by bdraco in https://github.com/Danielhiversen/flux_led/pull/130


**Full Changelog**: https://github.com/Danielhiversen/flux_led/compare/0.24.5...0.24.6

What's Changed
* Fix fallback to old ledenet protocol with asyncio by bdraco in https://github.com/Danielhiversen/flux_led/pull/129


**Full Changelog**: https://github.com/Danielhiversen/flux_led/compare/0.24.4...0.24.5

What's Changed
* Make levels change request aware of channel mapping by bdraco in https://github.com/Danielhiversen/flux_led/pull/124
* Upgrade code to python 3.7+ by bdraco in https://github.com/Danielhiversen/flux_led/pull/126
* Normalize model db, add newly found models by bdraco in https://github.com/Danielhiversen/flux_led/pull/125
* Move all code that does blocking I/O out of the LEDENETDevice class by bdraco in https://github.com/Danielhiversen/flux_led/pull/127


**Full Changelog**: https://github.com/Danielhiversen/flux_led/compare/0.24.3...0.24.4