* next attempt to fix yield day for multiple inverters #1016
* fix export settings date #1040
* fix time on WebUI (timezone was not observed) #913#1016
* 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 display of hidden SSID checkbox
* changed yield correction data type to `double`, now decimal places are supported
* corrected name of 0.91" display in settings
* attempt to fix MqTT zero values only if setting is there #980, #957
* made AP password configurable #951
* added option to start without time-sync, eg. for AP-only-mode #951
* 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
* further improved save settings
* removed `#` character from ePaper
* fixed saving pinout for `Nokia-Display`
* removed `Reset` Pin for monochrome displays
fix add inverter `setup.html` #766
fix MQTT retained flag for total values #726
renamed buttons for import and export `setup.html`
added serial message `settings saved`
fix limit in [User_Manual.md](../User_Manual.md)
changed `contrast` to `luminance` in `setup.html`
try to fix SSD1306 display #759
only show necessary display pins depending on setting
improved saving settings of display #747, #746
disabled contrast for Nokia display #746
added Prometheus as compile option #719, #615
update MQTT lib to v1.4.1
limit decimal places to 2 in `live`
added `-DPIO_FRAMEWORK_ARDUINO_MMU_CACHE16_IRAM48` to esp8266 debug build #657
a `max-module-power` of `0` disables channel in live view `setup`