Merge pull request #6666 from aabadie/mkr1000

boards/arduino-mkr1000/Makefile

boards/arduino-mkr1000/Makefile.dep

boards/arduino-mkr1000/Makefile.features

boards/arduino-mkr1000/Makefile.include

boards/arduino-mkr1000/board.c

boards/arduino-mkr1000/dist/bossac

boards/arduino-mkr1000/dist/bossac_osx

boards/arduino-mkr1000/dist/flash.sh

boards/arduino-mkr1000/include/arduino_board.h

boards/arduino-mkr1000/include/arduino_pinmap.h

boards/arduino-mkr1000/include/board.h

boards/arduino-mkr1000/include/gpio_params.h

boards/arduino-mkr1000/include/periph_conf.h

cpu/sam0_common/ldscripts/samd21g18a_mkr1000.ld

tests/unittests/Makefile