With these changes the output of `M503 S0` is all you need to restore
the EEPROM. Building on this it is straightforward to save and restore
the EEPROM state using the SD card or external GCode file.

- Added `M145` to set “heatup states” for the LCD menu
- Added `M420` to toggle Mesh Bed Leveling
- Added `M421` to set a single Mesh coordinate
- Extended `Config_PrintSettings` with added M codes
- Cleaned up some comments here and there

- Add `M111` as a standard option to set the debug level
- Implement `DEBUG_ECHO` in `process_commands`
- Other debug levels (e.g., `DEBUG_DRYRUN`) need more work

- Address issue raised in #1961

Else will throw error:
@:0 B@:0
Error:No thermistors - no temperature
[ERROR] Error:No thermistors - no temperature

when no bed is defined

delete some tabs

Ensure the probe offset will always be included when homing Z.

c'n'p ftw :/

and add some documentation - how to integrate a new font.

Syntax error.

no user will home to 0 with a max endstopp

and removed some tabs.

Centralised beep code to lcd_buzz().
From gcode_M300() and lcd_quick_feedback().

Enforced max. duration for M300 to 5 seconds.

Corrected description in 'Configuration.h'

LCD_FEEDBACK_FREQUENCY_HZ 0 gives now a silent delay of
LCD_FEEDBACK_FREQUENCY_DURATION_MS.

Corrected wrong order of parameters.

Introduced in commit 697ee2dc and later spread to other files.

I.e., when acceleration * steps per mm > 2,000,000.
This was done by changing MultiU24X24toH16 to take a 32b bit operand.
Removed the claim that stepper.cpp uses the Leib algorithm.

Ensure the probe offset will always be included when homing Z.

example_configurations\K8200\Configuration.h:
* merge upstream changes from default Configuration.h manually
* add some machine specific comments

Example Configuration for K8200 : comments/URL/readme

example_configurations\K8200\Configuration.h:
* add machine specific header
* change STRING_URL to K8200 fork (@thinkyhead: What do you think?)

example_configurations\K8200\readme.md:
* updated documentation
* added URLs and links

Example Configuration for K8200 : comments/URL/readme

example_configurations\K8200\Configuration.h:
* add machine specific header
* change STRING_URL to K8200 fork (@thinkyhead: What do you think?)

example_configurations\K8200\readme.md:
* updated documentation
* added URLs and links