add ENCODER_PULSES_PER_STEP

FIx compilation error when enabling SERVO_ENDSTOPS (#591)

Changed EEPROM CHITCHAT behavior. M503 is always enabled.

Fan fix for Panelolu2+Sanguinololu.

Fixed bug that makes ulticontroller knob backwards introduced Feb 28 201...

Bug introduced in version 6beb42cd.
Robert did a good job of simplifying but messed up this chunk of code.

Looking at working version: 839bef6d
it seems there is no case where encrot3 should be defined as 2
because if ULTICONTROLLER is defined then NEWPANEL is also defined.

Fix the example delta configuration by adding DELTA_DIAGONAL_ROD_2

add command M666 for adjusting delta printer endstop position

Add duplication and auto-park mode for dual x-carriage support.

RAMBo LCD Support, Additional Pins, and Arduino add ons

Improvment for delta, Honeywell thermistor table and move from panel

Conflicts:
	Marlin/Marlin_main.cpp

Detect OS in Makefile to use the correct avrdude.conf path

separate INVERTING for MIN and MAX endstops (6 #defines instead of 3)

convert PROTOCOL macros from statements to (multiple, comma separated) expressions

renamed ArduinoAddons/Arduino_1.x.x/sanguino to Sanguino. Now make works...

The SD card menu was refreshing so slowly that the button interrupt was clearing LCD_CLICKED before the menu items could check it.

Use LIQUID_TWI2=1 as make argument to enable this support