* heuristics fix#1269#1270
* moved `sendInterval` in settings, **important:** *will be reseted to 15s after update to this version*
* try to prevent access to radio classes if they are not activated
* fixed millis in serial log
* changed 'print whole trace' = `false` as default
* added communication loop duration in [ms] to serial console
* don't print Hex-Payload if 'print whole trace' == `false`
* 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
* merge PR #876, check JSON settings during read for existance
* **NOTE:** incompatible change: renamed `led_high_active` to `act_high`, maybe setting must be changed after update
* restructure serial debug output (partly)
+ MI - more code review
* fix debug output for power control cmds
* MI - limitation commands answered
* Debug - add more macros and texts
Might as well help for https://github.com/lumapu/ahoy/pull/478
Unfortunately, this atm doesn't really lower used flash memory
* MI - limit command
- now seems to work for MI-600 (to be verified)
- debug - more use of macros (wrt. to real effect see last remark)
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