3.9.22 20170228
* Update web console
* Fix Status 4 JSON message
* Add Exception info during restart if available
* Add osWatch service to detect loop hangs that might happen during
(OTA) upgrades
* Add WiOn support for relay and switch only (#82, #102)
* Allow for user specified relay count up to four in sonoff_template.h
(#109)
* Add support for HTU21 compatible I2C sensors SI7013, SI7020 and SI7021
(#118)
* Add NodeMCU or Wemos configuration option (#119)
3.9.15 20170213
* Change JSON float values from string to number according to
http://json.org (#56)
* Add support for exs latched relay module
https://ex-store.de/ESP8266-WiFi-Relay-V31 (#58)
* Add support for inverted relays
* Changed MAX_LOG_LINES from 70 to 60 to preserve memory
3.9.14 20170211
* Add False and True as alternatives for 0/Off and 1/On (#49)
* Fix Status10 JSON format (#52)
* Fix DS18x20 using OneWire library (#53)
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)