traces made by Knut Schwichtenberg, and by similarity to JTAGICEmkII. Still quite incomplete, just megaAVR/JTAG is done by now. git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1109 81a1dc3b-b13d-400b-aceb-764788c761c2