* Fix thermal protection documentation.

Even before the recent thermal protection changes, the documentation of
the thermal protection feature in the config files did not match the
implementation.  I fixed the documentation and reconciled the M303
implementation with the documentation.

* Applied documentation changes to sample config files

* Renamed hysteresis to watch_temp_increase

* Added gcodes back into documentation.

[1.1] Fix G92 for native workspace

Length fix and translation

[1.1x] Fix Delta EEPROM

If #define MSG_Z_FADE_HEIGHT is xx.xx then the last character is crashing into the value

[1.1] Misc. fixes picked up from 2.0.x

[1.1] Fix non-extended font option

Fix EEPROM reversion.

* Fix G26's circle drawing...

This mostly catches the bugfix-v1.1.x branch up to bugfix-v2.0.0

I'll have to do something similar to get bugfix-v2.0.0 caught up to
bugfix-v1.1.x

* only use planner.leveling_active if appropriate

[1.1] Cleanup Nozzle class, fix XY vs Z move order

[1.1.x] CNC_COORDINATE_SYSTEMS

[1.1] Add Anet Keypad LCD pins for RAMPS

Working pin map for Anet LCD display.
Pins 1 and 2 must be swapped on cable.

[1.1] Update git helper scripts

[1.1.x] Operate in Native Machine Space

Fix probes configuration url

[1.1] Some cleanup around 'lcd_bootscreen()' and 'lcd_kill_screen()'

Move 'lcd_bootscreen()' from `lcd_init()` to 'setup()' where it is cexecute exactly once. Saves 'bool show_bootscreen'.
Move the call of 'lcd_custom_bootscreen()' to the begin of 'lcd_bootscreen()'.
Move the delays into the related functions.
Move the picture loop around 'lcd_kill_screen()' into the function.

[1.1.x] Faster menu navigation for Anet A8

* [1.1.x] G33 magic numbers

* oops

* comments

* oops

* warning

* better comment section

* remarks

* extra grids

* Added M303 thermal runaway protection

Currently, thermal runaway protection is not available during M303.
Therefore, if someone plugs the thermistors in incorrectly and goes to
autotune their printer, the printer temperature could runaway and damage
could occur.

* Replace removed line, clarifying its logic

[1.1.x] Fix automatic stepper assignment for X/Y/Z dual stepper drivers