* fix Contrast for Nokia Display #1041
* attempt to fix#1016 by improving inverter status
* added option to adjust effiency for yield (day/total) #1028
* fix HMS-800 and HMS-1000 assignments #981
* make nrf enabled all the time for ESP8266
* fix menu item `active` highlight for 'API' and 'Doku'
* fix MqTT totals issue #927, #980
* reduce maximum number of inverters to 4 for ESP8266, increase to 16 for ESP32
reenabled FlashStringHelper because of lacking RAM
complete rewrite of monochrome display class, thx to @dAjaY85 -> displays are now configurable in setup
* fix negative temperature (OpenDTU issue 246)
* added plausibility check based on payload length
* prepared project for splitting into library and end-user-esp
* added donation link to index.html
* deactivated disclaimer temporarily
* request only one inverter per loop (https://github.com/grindylow/ahoy/issues/53#issuecomment-1147042489)
* mqtt loop interval calculated by # of inverters and inverter request interval
* limit maximum number of retries
* added feature request #62 (readable names for channels)
* improved setup page, added javascript to hide / show channel fields
** IMORTANT: memory layout change, all configuration will be lost, except WiFI **
* improved RF24 ISR
* reduced AP active time to 60s (will be increase once a client is connected)
* added `yield` without success -> random reboot (cause 4)
* 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)