Eugenio Panadero 875edef3f0 Fix load of components without any config from packages (#9901)
* Fix load of components without any config from packages

- Add 'None' to the packages config schema validation, to be able to
load components without any more configuration from yaml package files,
like `wake_on_lan`, `media_extractor` and so on.

* test the ability to load components without configuration from packages
2017-10-17 09:59:33 +02:00
..
2017-09-24 08:12:38 +02:00
2016-01-30 14:08:32 -05:00
2017-08-29 13:40:08 -07:00
2016-10-23 23:48:01 -07:00
2017-09-23 17:15:46 +02:00