Sync up to Marlin

Updated example configurations for Delta printers

Fixed typo.

Support for a filament diameter sensor

Signed-off-by: Christian Inci <chris.pcguy.inci@gmail.com>

Fix "add_homeing" to "add_homing" to match changes

Update line 627 ,wrong number on thermistortables

Wrong number on line 627 > i change number "12" by the correct number "13"
Soory

Added profile for RAMPS with 2 extruders and 1 fan, no heated bed

Wing fix float delta

Add thermistor table

Update motion_control.cpp

Simple code cleanup. Rename "homeing" to homing.

Proposed feature: Set Home Offsets

Adjust the Z display to hide float rounding errors

Make hotend optional when compiling with lcd support

Signed-off-by: Matthew Schick <matthew.schick@gmail.com>

Add an item to the LCD menu that applies the current axis position to
the “add_homeing” offset.

G03 Full circle did not work (G02 is working correct)

Add another thermistor table (13),it's a cartridge thermistor up to +300°C,use with Hotend "Simple ONE" & "All In ONE"

Thx

Add another comment for thermistor 13 ,use with Hotend "Simple ONE & All In ONE"

Add another comment on configuration.h for the value of thermistor.
I make a pull request on thermistortables.h with my thermistor (12),but y see there is a comment on configuration with number 12 but it's not present on thermistortables.h ?

Thx

Add another thermistor table,use with hotend "Simple ONE" & "All in ONE"

Corrected retract() call for use of auto probe without sled enabled.

Fix build for non-sled bed auto levelling

This function should only be used with sled, not all bed auto
levelling.

Fix issue 935: error in matrix calculation

Added the new m-codes to this document.

	modified:   Marlin/Configuration.h
	modified:   Marlin/pins.h

Adjusted the  #define PID_dT to reflect 10 A to D sample steps, vs
original 8.

thanks...

The serial protocol has to stay machine readable, without having
to cope with a ton of different human language variants. So
just leave it at the original english version.

Should fix ErikZalm/Marlin#1052

Implemented SCARA-Maths

Fix lcd itostr3() to handle negative numbers

Leapfrog controller board support

temperature.cpp fixes for SD card and MAX6675

FWRETRACT fixes

With option DISABLE_INACTIVE_EXTRUDER the extruder is disable to early