- use setOriginalsFromValues function right after elements had changed and
**only** with those elements
- add checkbox handling to setOriginalsFromValues to match hasChanged
- apply hasChanged after value is set to refresh originals after saving
- change parts that already set 'original' attribute manually

This was sort-of broken, because original attr never worked as intended. 
Also fix possible OOM for large WebUI images, since sending full config each time means that we need more memory to buffer and parse it.

* Fixed small esthetic problem

* Changed to legend

* RPN rules (WIP)

* RPN rules web interface, MQTT inputs

* Stickyness, rpn.ops,...

* Perform light updates only when value changes

* Improve wsSend performance

* Revert PR test

* Check TERMINAL_SUPPORT for _rpnInitCommands and remove unused variable

* Fix merge

* formatting

* disable by default (?)

* changelog

* comment

* remove debug function wrappers in favour of var activation

* fixup! comment

* Added restore last schedule support

* Merged RestoreLastScheduleState function into the _schCheck function

* handle lights in restore action

* hide webui chbox when not using scheduler

* use settings instead of struct member, hide under ifdef scheduler_support

* relayLastSchedule uses SCHEDULER_RESTORE_LAST_SCHEDULE as default

* Changed all the variable names to be the same so there would be no confusions

* Fixed client side to create an array from relayLastschedule

* Fixed cosmetic issue with the toggle display in webui

* Fixed variable name and disabled comparison at the end

* Added another check if the switch type is light provider

* Changed variables naming

* Naming mistake

* relays: locked status

* remove debug

* Disable relay toggle when locked

* fixup! Disable relay toggle when locked

* Send lock with status, fix "disable" condition

* typo

* Update WebUI

* add CCT support for 2 channel boards

* update webinterface description

* add 2 channel CCT to homeassistant and domoticz

* remove domoticz two channel cct support.

Allow defining custom device name for alexa integration, other than hostname.
Still uses hostname as a fallback.

- remove optional RFRAW_SUPPORT
- enable module when RF_SUPPORT=1, optionally enable RCSwitch
- reorder ifdef checks to treat RFB_DIRECT and old RF_SUPPORT the same
- rename RF_PIN to RFB_RX_PIN
- depend on RF_SUPPORT instead of ITEAD_SONOFF_RFBRIDGE
- runtime TX & RX PIN setting

* Add "Enable Thermostat" switch

* Add heater/cooler thermostat mode

1. Add thermostat to the espurna_modules in progmem.h
2. Add thermostat to webui, gulp, html, js.
3. in general.h MQTT_USE_JSON returned to 0 by default and 1 if thermostat enabled.

- Heartbeat mode and interval configuration added to WebUI ADMIN page
- New option HEARTBEAT_REPEAT_STATUS: on device startup full heartbeat information and after HEARTBEAT_INTERVAL only STATUS report.
- Enhanced first heartbeat message - on device startup it will send heartbeat after ntpSynced will be true to get device time.

P.S. Code is tested. Web part is not compiled, and not tested. I hope it will work :)

* Fix energy ratio input for pulse meter sensor

* checkout origin/dev -- webui files

* Telnet auth depends on setting

* use same define suffix as WS_

* add to web

* no initial passwd for core

Show alert if no input on #password page
Do not fail with empty password when on #layout
Fix password selector

* revise first-time-use screen
* generate password (policy applies)
* hide/reveal password text for sta/admin settings
* changed autocomplete='...' for some inputs to avoid completion

* fix webui regexp and input length limits
* explain requirements in webui and headers