update CHANGES.md to contain information since last release

src/CHANGES.md

@@ -9,3 +9,54 @@
 * added NRF24 info to Systeminfo, @DanielR92
 * added timezone for monochrome displays, @gh-fx2
 * added support for second inverter for monochrome displays, @gh-fx2
+
+## 0.5.50
+* fixed scheduler, uptime and timestamp counted too fast
+* added / renamed automatically build outputs
+* fixed MQTT ESP uptime on reconnect (not zero any more)
+* changed uptime on index.html to count each second, synced with ESP each 10 seconds
+
+## 0.5.49
+* fixed AP mode on brand new ESP modules
+* fixed `last_success` MQTT message
+* fixed MQTT inverter available status at sunset
+* reordered enqueue commands after boot up to prevent same payload length for successive commands
+* added automatic build for Nokia5110 and SSD1306 displays (ESP8266)
+
+## 0.5.48
+* added MQTT message send at sunset
+* added monochrome display support
+* added `once` and `onceAt` to scheduler to make code cleaner
+* improved sunrise / sunset calculation
+
+## 0.5.47
+* refactored ahoyWifi class: AP is opened on every boot, once station connection is successful the AP will be closed
+* improved NTP sync after boot, faster sync
+* fix NRF24 details only on valid SPI connection
+
+## 0.5.46
+* fix sunrise / sunset calculation
+* improved setup.html: `reboot on save` is checked as default
+
+## 0.5.45
+* changed MQTT last will topic from `status` to `mqtt`
+* fix sunrise / sunset calculation
+* fix time of serial web console
+
+## 0.5.44
+* marked some MQTT messages as retained
+* moved global functions to global location (no duplicates)
+* changed index.html inverval to static 10 seconds
+* fix static IP
+* fix NTP with static IP
+* print MQTT info only if MQTT was configured
+
+## 0.5.43
+* updated REST API and MQTT (both of them use the same functionality)
+* added ESP-heap information as MQTT message
+* changed output name of automatic development build to fixed name (to have a static link from https://ahoydtu.de)
+* updated user manual to latest MQTT and API changes
+
+## 0.5.42
+* fix web logout (auto logout)
+* switched MQTT library