Added CUSTOM_MENDEL_NAME option to Configuration.h and language.h

Also cosmetic comment changes and spelling corrections in printed
messages
Make M303 silent when "S0" is sent

If S is left out perhaps it should be silent, but check the spec for
this M code.
Support for 10 level deep SD folder hierarchy
Adding servo documentation
Apply all changes from latest Marlin_V1

Diffed and merged, preserving my updates
Update Configuration.h
Update pins.h
Update language.h
Update Configuration.h
Update Configuration.h
Update pins.h
Spanish updated so far.
Merge branch 'Marlin_v1' into thinkyhead

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
Merge branch 'Marlin_v1' of https://github.com/BorisLandoni/Marlin into BorisLandoni-Marlin_v1

Conflicts:
	Marlin/Configuration.h
	Marlin/language.h
	Marlin/pins.h
Merge branch 'Marlin_v1' of https://github.com/codexmas/Marlin into codexmas-Marlin_v1

Conflicts:
	Marlin/Configuration.h
	README.md
fix homing for deltas
Merge pull request #511 from wolfmanjm/ezdelta

fix homing for deltas
Merge branch 'deltabot' into Marlin_v1
More 3Drag controller patches.
Delta disabled by default