#15 #9 Cleaned up for release, removed unfinished business, improved user guidance in ui, improved handling of temperatures from both variable and sensors, implemented backwards compatibility. Implemented correct handling of switching between using variables or sensors.
#4 Implemented check for at least one heater is selected
Changed the versioning according to semantic versioning. Dropping beta, still SW is realeased as "works for me sw"
Merged everything except Devices.xml with Release002 branch to get fixes into main branch but keep new developement in devices.xml removed for release