Description:

Changelog: https://github.com/fabaff/python-mystrom/blob/master/CHANGELOG.rst

Additionally:

• Align log messages of the platforms (first step)
• Return None

Example entry for configuration.yaml (if applicable):

switch:
  - platform: mystrom
    name: Reduit
    host: 192.168.122.40
light:
  - platform: mystrom
    name: Living room
    host: 192.168.122.50
    mac: 5DDE9FA5C21C

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass

If the code communicates with devices, web services, or third-party tools:

• New dependencies have been added to the REQUIREMENTS variable (example).
• New dependencies are only imported inside functions that use them (example).
• New dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.