2014-09-09 Fred Gleason <fredg@paravelsystems.com>
	* Added an 'RDMatrix::BtGpi16' value to the 'RDMatrix::Type'
	enumeration in 'lib/rdmatrix.cpp' and 'lib/rdmatrix.cpp'.
	* Implemented a driver for the Broadcast Tools GPI-16 in
	'ripcd/btgpi16.cpp' and 'ripcd/btgpi16.h'.