Update Configuration_adv.h

Increase Z_HOME_RETRACT_MM to 2mm default to avoid end stop not switching during retract.
Added servo pin assignments to Sanguinololu
Sanguinololu servo pins set default disabled
Update language.h

Added catalan language
Update language.h

Updated to latest version.
Merge pull request #826 from paciotti/patch-1

Configuration_adv.h
Merge pull request #845 from DerSchultze/Sanguinololu-servo

Added servo pin assignments to Sanguinololu
Merge pull request #852 from pixatintes/patch-1

Update language.h