5DPrint D8 Controller Board Support

Fix for microstepping pin mapping, not using Teensy pin mapping, but Arduino's default pin mapping so Arduino library can be used

This reverts commit eea3ba55.

This reverts commit 2715f6dd.

Update Marlin_main.cpp

Update Configuration_adv.h

Added description of autotemp flags to M109

Corrected error in AUTOTEMP instructions

Speed up QUICK_HOME feedrate for diagonal move

Speed up the diagonal move while still keeping each individual axis at
or below its homing feedrate.

Added new language (Basque-Euskera)

pull Request to Add beta 3950 1% thermistor table into marlin firmware

Added:
* new language (Basque-Euskera)
* some minor corrections for Spanish
* added 2 new constants for every language (required for a minor change
I am preparing to ultralcd.cpp)

it's caracteristics are :

R25℃ ;100KΩ±1%

B Value(R25/50℃)：3990K 1%
Dissipation Factor(mW/℃)：1.1~1.6 In still Air
Thermal Time Constant(S)：10~17 In Still Air
Operating temperature range：  (-50~+260°C)
Dimension：  1.8mm Dia X4.1mm
Lead Length  ：30mm

This table was found on the following blogs:
http://cae2100.wordpress.com/2014/03/08/beta3950-thermistor-table-for-marlin/

and

http://microfabricator.com/articles/view/id/531ad7e59aad9d3131000000/beta-3950-thermistor-table-for-marlin

Update language.h

Added servo pin assignments to Sanguinololu

Configuration_adv.h

Adjustable Z probe offset via custom M-code

Update Readme descriptions for M200, M207 and M208

FWRETRACT in mm/s