Added SerialControl

Allows manual mode/value setting of all pins

Signed-off-by: Chris Evich <chris-arduino@anonomail.me>
Update to latest subproject commits

Signed-off-by: Chris Evich <chris-arduino@anonomail.me>
MasterYewAye: Massive fixup for new board

Fixed many problems, basic functionality seems
to be working okay.  Added gitignore.  Converted
to using cmake.  Added in fritzing project file
for v2.7 produced board.

Signed-off-by: Chris Evich <chris-arduino@anonomail.me>
MasterYewAye: Board 2.7 Working Version

Signed-off-by: Chris Evich <chris-arduino@anonomail.me>
rtc_call: Measure precise rtc clkout frequency

Signed-off-by: Chris Evich <chris-arduino@anonomail.me>