0.1.21b4

CAUTION this includes breaking changes in the way that entities will be renamed. Best approach might be to remove/re-add the integration to ensure you won't end up with stale devices or devices ending in '_2'

Smile:

v0.1.21 - fix double outdoor_temp for Anna+Elga and device naming
v0.1.19+v0.1.20 - add function to count the amount of master-thermostats
Plugwise:

BREAKING: improve unique_id's and integration devices names
support cooling via the Elga
for 1 master-thermostat: link hvac_actions to states of the active device (heating & cooling), show remaining states via binary_sensors
for 2 or more master-thermostats: show heating-demand per thermostat in hvac_actions, show active device states via water_heater and binary_sensors
various small improvements