* further improved save settings
* removed `#` character from ePaper
* fixed saving pinout for `Nokia-Display`
* removed `Reset` Pin for monochrome displays
Warning: old exports are not compatible any more!
further save settings improvements (only store inverters which are existing)
improved display of settings save return value
made save settings asynchronous (more heap memory is free)
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`
reduced maximum allowed JSON size for API to 6000Bytes #660
small fix: output command at `prepareDevInformCmd` #692
improved inverter handling for MQTT #671
webserial minor overflow fix#660
web `index.html` improve version information #701
fix MQTT sets power limit to zero (0) #692
changed `reset at midnight` with timezone #697
added part of mac address to MQTT client ID to seperate multiple ESPs in same network
added dictionary for MQTT to reduce heap-fragmentation
removed `last Alarm` from Live view, because it showed always the same alarm - will change in future
fix blue LED lights up all the time #672
fix installing schedulers if NTP server isn't available
improved zero values on triggers #671
hardcoded MQTT subtopics, because wildcard `#` leads to errors
rephrased some messages on webif, thx to @Argafal#638