Disable is now multi extruder compatible. M84 got a T option.
PID now per extruder. Fixed typo
Added support for Elefu RA Board and Elefu Control Panel
Turning off Control Panel by Default and Updating the link to the LiquidCrystal_I2C library to avoid confusion.
Merge remote-tracking branch 'upstream/Marlin_v1' into Marlin_v1
Fixing changed Configuration.h settings to be default values per ErikZalm Request.
Merge branch 'Marlin_v1' of https://github.com/ErikZalm/Marlin into Marlin_v1

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

Conflicts:
	Marlin/Configuration.h
	Marlin/Marlin.pde
	Marlin/ultralcd_implementation_hitachi_HD44780.h
Fixed small error in lcd define statements.
Fixed small error in lcd define statements.
Fixed small error in lcd define statements.
Trying to fix weird diff on ultralcd_implementation_hitachi_HD44780.h
Merge pull request #467 from kiyoshigawa/Marlin_v1

Support for Elefu RA Board