* 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.
* 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
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.
* 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 NO_MOTION_BEFORE_HOMING unwanted behaviour
NO_MOTION_BEFORE_HOMING should prevent XYZ movements only when homing is not done.
E axes should be allowed
* Update Marlin_main.cpp
* Update Marlin_main.cpp
* Update Marlin_main.cpp
Scott Lahteine