Conflicts:
	hardware/arduino/samd/cores/arduino/USB/USBCore.cpp
	hardware/arduino/samd/cores/validation/validation_usb_device/build_as6/test.cppproj

 fixing typo in wire.h

Implemented Auto-Reset on 1200bps-touch (Native Port) to restart bootloader

Some serial libraries opens the serial port BEFORE setting the baudrate.
This patch allows finer control on the reset condition, since it's
checked on open/close (DTR) AND on serial port parameter change.

o Please enter the commit message for your changes. Lines starting

Conflicts:
	hardware/arduino/samd/cores/arduino/USB/samd21_host.c
	hardware/arduino/samd/cores/validation/validation_usb_host/test_usb_host.cpp

 Fixing Analog Reference values