* change MqTT return value of power limit acknowledge from `boolean` to `float`. The value returned is the same as it was set to confirm reception (not the read back value)
* merge PR: solve display settings dependencies #1369
* fix language typos #1346
* full update of ePaper after booting #1107
* fix MqTT yield day reset even if `pause inverter during nighttime` isn't active #1368
* added minimal version (without: MqTT, Display, History), WebUI is not changed!
* added simulator (must be activated before compile, standard: off)
* changed communication attempts back to 5
* fix ESP8266 inverter settings #1226
* send radio statistics via MqTT #1227
* made night communication inverter depended
* added option to prevent adding values of inverter to total values (MqTT only) #1199
* fixed docu #1085
* changed active power limit MqTT messages to QOS2 #1072
* improved alarm messages, added alarm-id to log #1089
* trigger power limit read on next day (if inverter was offline meanwhile)
* disabled improv implementation to check if it is related to 'Schwuppdizitaet'
* changed live view to gray once inverter isn't available
* added inverter status to API
* changed sum of totals on WebGui depending on inverter status #1084
* merge maximum power (AC and DC) from PR #1080
* MqTT alarm data was never sent, fixed
* REST API: added alarm data
* REST API: made get record obsolete
* REST API: added power limit acknowledge `/api/inverter/id/[0-x]` #1072
* merge PR #1069 make MqTT client ID configurable
* fix#1016, general MqTT status depending on inverter state machine
* changed icon for fully available inverter to a filled check mark #1070
* fixed `last_success` update with MqTT #1068
* removed `improv` esp-web-installer script, because it is not fully functional at this time
* merge PR #1056, visualization html
* update MqTT library to 1.4.4
* update RF24 library to 1.4.7
* update ArduinoJson library to 6.21.3
* set minimum invervall for `/live` to 5 seconds