5.0.6 20170510
* Remove hyphen in case of a single DHT sensor connecetd (#427)
* Add command MqttRetry <seconds> to change default MQTT reconnect retry
timer from minimal 10 seconds (#429)
5.0.2 20170503
* Reset SaveData, SaveState and MqttResponse to default values due to
rearranging settings
* Moved some settings flag area
* Add command TempUnit Celsius|Fahrenheit for selecting Celsius or
Fahrenheit (#347)
* Add command TempRes 0..3 for selecting Temperature Resolution (#347)
* Add command HumRes 0..3 for selecting Humidity Resolution (#347)
* Add command PressRes 0..3 for selecting Pressure Resolution (#347)
* Add command EnergyRes 0..5 for selecting Energy Resolution (#347)
* Add "TemperatureUnit":"C|F" to sensor JSON output (#347)
* Add support for up to three DHT type sensors each using a different
GPIO (#339, #404)
5.0.0 20170425
* Memory status message update
* Fix setting migration to better preserve settings during move (#382)
* Best practice is first doing a Backup Configuration before installing
version 5.0.0
* Reset save count after setting move
* Start using new linker script without SPIFFS
4.0.2 20170308
* Restore correct seriallog level after Serial logging was disabled
* Add simple dimmer slider to Sonoff Led web page
* Reduced root webpage size by 31%
* Expand Status 2 with Build date/time and core version
* Fix webserver redirection when not in WifiManager mode (#156)
* Add command ButtonRestrict On/Off to restrict access to button hold
and button multi press options above 2 (#161)
* Fix DS18S20 negative temperature readings (#165)
* Fix crlf compilation error due to bad syntax (#144, #167)
3.9.11 20170204
* Fix command I2Cscan
* Fix not allowed spaces in Topic, ButtonTopic and SwitchTopic
* Make all TELEMETRY, STATUS and COMMAND message topics unique (#4)
* Advertise command topic to be used by iobroker (#299)
* Fix butten (non)detection if no GPIO_KEY1 is defined (#13)
* Change WeMo serialnumber from 7 decimal chars to 8 hexadecimal chars
(#18)
* Update web page with Build Date/Time, Emulation and mDNS Discovery and
Advertise information (#21)
