changes

v0.1
  initial release
v1.0
  several enhancements including the addition of digital inputs, auto discovery of dingtian and shelly switches, temperature sensors, tank sensors, and mqtt battery
  reduced and consolodated code to run more efficiently.
v1.1
  fix file permissions
v1.2
  further developement of digital inputs
v1.3
  major overhaul of configuration script and menu structure
  added PV Chargers (dc)
  major overhaul of external_devices.py to drastically reduce cpu and overhead.
v1.4
  fix issue that when more than one dbus uses the same mqtt message topic resulted in only the last dbus value recieving the update.
  cleanup code
v1.5
  fix rounding error in pv charger class
v1.6
  change rounding from 1 to 2
v1.7
  fix bug when broker connection was lost, broker was reconnected but topics not re-subscribed
v1.8.0
  change to stand alone install (setup helper no longer required)
v1.8.1
  fix syntax error
v1.8.2
  fix restart script
v1.8.3beta
  fix download script
v1.8.4beta
  add showgui setting for switches
v1.8.5beta
  changes to how showgui is handled
v1.8.6beta
  bugfix
v1.8.7beta
  more bug fixes
v1.9
  stable release
v1.9.1
  change restart method in config.py
v1.9.2
  update restart script
v1.9.3
  update restart script
v1.9.4.2beta
  add status logic to temp and tank sensors
v1.10
  stable release
v1.11
  add missing battery paths