Merge pull request #1717 from thinkyhead/fixup_warnings

Marlin/ConfigurationStore.cpp

Marlin/Marlin_main.cpp

Marlin/cardreader.cpp

Marlin/configurator/config/language.h

Marlin/example_configurations/SCARA/Configuration_adv.h

Marlin/language.h

Marlin/pins.h

Marlin/pins_3DRAG.h

Marlin/pins_5DPRINT.h

Marlin/pins_AZTEEG_X3.h

Marlin/pins_AZTEEG_X3_PRO.h

Marlin/pins_BAM_DICE_DUE.h

Marlin/pins_FELIX2.h

Marlin/pins_HEPHESTOS.h

Marlin/pins_WITBOX.h

Marlin/planner.cpp

Marlin/qr_solve.cpp

Marlin/stepper.cpp

Marlin/temperature.cpp

Marlin/ultralcd.cpp