5.0.7 20170511
* Fix possible exception 28 on empty command
* Add command SetOption0 as replacement for SaveState
* Add command SetOption1 as replacement for ButtonRestrict
* Add command SetOption2 as replacement for Units
* Add command SetOption4 as replacement for MqttResponse
* Add command SetOption8 as replacement for TempUnit
* Add command SetOption10 On|Off to select between Offline or Removing
previous retained topic (#417, #436)