improved wifi initial connection - especially if station wifi is not available #509
removed new operators from web.h (reduce dynamic allocation)
improved sun calculation #515, #505
fixed wifi auto reconnect #509
added disable night communication flag to MQTT #505
changed MQTT publish of `available` and `available_text` to sunset #468
added icons to index.html, added wifi-strength symbol on each page
moved packet stats and sun to system.html
refactored communication offset (adjustable in minutes now)
included #483 improvements
fix#468 last_success MQTT
fix#468 update available status at sunset
fix#447 reorderd enqueue commands to not have same payload length in a row
added ssd1306 and nokia display to build script
-> now Ahoy opens an AP during boot. This will be closed once a station WiFi connection is established
improved NTP after boot, will be synced immediately after successful WiFi connection
removed wrong "inverter type can't be detected!" messages
repaired NTP and static IP #459
MQTT status about availability and produce are retain messages now