Delay device discovery during WeMo component initialization.
Delay device discovery during WeMo component initialization.

Schedule device discovery to run after the WeMo component has finished
initializing. This avoids a situation where initialization fails because
discovery triggered initialization of two WeMo platforms that both
try to setup the WeMo component.

jaharkes/home-assistant,jaharkes/home-assistant,jaharkes/home-assistant,jaharkes/home-assistant