Command sanitizer

M120 and M121 are reversed

to warrant watching is set or reset.

Make setTargetBed() in _lcd_preheat() dependant of TEMP_SENSOR_BED.
Use disable_all_heaters() in lcd_cooldown() and abort_on_endstop_hit.

Use _temp_error() for all errors thrown by different heater sanity check mechanisms

Add a string parameter to kill()

in temperature.cpp

Makes the output on the LCD adjustable.

instead of stop(). We really want to require a reset and no chance to set a new temperature.

move dogm font selection to configuration_adv.h

Add  ELB_FULL_GRAPHIC_CONTROLLER with ADAFRUIT_ST7565 display.

Updated all the example Configuration.h files for the new display type.

Added the link to the github information about the
ELB_FULL_GRAPHIC_CONTROLLER

language.h: update documentation / URL für K8200

 Remove Duemilanove

transpire -> expire

No way to fit Marlin into 32K.

Fixed a couple defines that were not changed or commented out.

language.h: update documentation for LANGUAGE_INCLUDE

@thinkyhead What do you think? I think there should be a warning like
this.

Minor wording correction.

Now ending in an endless loop.
Tidy up the output format.
We now get:
ERRORTEXT ", system stopped! Heater_ID: " HEATERID

Where ERRORTEXT can be:
"Heating failed"
"Thermal Runaway"
"MAXTEMP triggered"
"MINTEMP triggered"
and soon
"Thermal Jump"

HEATERID can be
0, 1, 2 ,3 , "bed"

This messages are always followed by the common:
"Printer stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset. Set it after restarting)"

- Use a global pointer for the current sanitized command
- Pre-sanitize the current command to bypass `N` and nullify `*`,
removing the need for handlers to bypass, ignore, or nullify these
parts, and reducing overhead for `code_seen`, etc.
- Pre-skip leading whitespace.
- Only look for G, M, T codes at the start of the command.
- Verify that G, M, T codes are followed by command codes.

Moved SDCARDDETECTINVERTED and SDSLOW to Conditionals.h.
Added U8GLIB_LM6059_AF to define display specific actions.
Added reminder to compile in u8glib

Name magic value 20 to MAX_OVERSHOOT_PID_AUTOTUNE

to make it better findable.