* added option to compile WiFi SSID + PWD to firmware
* added option to configure WiFi access point name and password
* added feature to retry connect to station WiFi (configurable timeouts)
* updated index.html
* added option for factory reset
* added info about project on index.html
* moved "update" and "home" to footer
* fixed#23 HM1200 yield day unit
* fixed DNS name of ESP after setup (some commits before)
