* Expose Wemo component availability to home assistant
* Do not add availability feature to dimmer - it works differently
* Brain fade, deleted completely the wrong thing.
Revert "Do not add availability feature to dimmer - it works differently"
This reverts commit f64e7179818fa12d8290ac32de0680025a7eff21.
* (2nd attempt) Do not add availability feature to dimmer - it works differently