Conflicts:
	hardware/arduino/samd/variants/arduino_zero/variant.cpp

Conflicts:
	hardware/arduino/samd/variants/arduino_zero/variant.cpp

Conflicts:
	hardware/arduino/samd/variants/arduino_zero/variant.cpp

Conflicts:
	hardware/arduino/samd/cores/arduino/SERCOM.cpp
	hardware/arduino/samd/cores/arduino/SERCOM.h

Conflicts:
	hardware/arduino/samd/variants/arduino_zero/variant.cpp

 PWM AnalogWrite refactoring

 Fixing the failed compilation due to PR #16 merge

 Adding UART/USB bootloader project

 TCC/TC pull request

removing the merge lines

variant.c instead of TC/TCC information

Conflicts:
	hardware/arduino/samd/cores/arduino/validation/build_as6/test.atsuo
	hardware/arduino/samd/cores/validation/validation_core/build_as6/test.cppproj
	hardware/arduino/samd/cores/validation/validation_core/test.cpp

Fix UART baudrate and EDBG.