Enables two stepper drivers to be used for the Y axis (useful for
Shapeoko style machines)
Each Y driver can be stepped either the same way or in opposite
directions, accounting for different hardware setups (leadscrew vs. belt
driven)

Fix Pin Description Typo

Reverse 'Bed' and 'Fan' at the RAMPS 33 Description.

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

ultralcd.cpp compile errors when !defined(PIDTEMP)

added Azteeg X1 motherboard

Makefile fixes

fix homing for deltas

Conflicts:
	Marlin/Configuration.h
	README.md

Conflicts:
	Marlin/Configuration.h
	Marlin/language.h
	Marlin/pins.h

Conflicts:
	Marlin/Configuration.h
	Marlin/Configuration_adv.h
	Marlin/Marlin.h
	Marlin/Marlin_main.cpp
	Marlin/Servo.cpp
	Marlin/language.h
	Marlin/pins.h
	Marlin/planner.cpp
	Marlin/ultralcd_implementation_hitachi_HD44780.h
	README.md

 Fix home_all_axis to make QUICK_HOME work with Repetier-Host which sends G28 X0 Y0 Z0 instead of G28. Thanks to Matt Schoenholz for reporting this issue.

(Thanks iquizzle)

Conflicts:
	Marlin/Configuration.h
	Marlin/Marlin_main.cpp
	Marlin/pins.h

Support for Elefu RA Board

This should fix issues with pull request 467, I hope.

Conflicts:
	Marlin/Configuration.h
	Marlin/Marlin.pde
	Marlin/ultralcd_implementation_hitachi_HD44780.h

Servo Enstops working!