* usbasp.c: Check for USBasp with new as well as old VID/PID
pair, warn the user about upgrading the firmware in case an
old one has been found.
* usbasp.h: Add new VID/PID.
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@661 81a1dc3b-b13d-400b-aceb-764788c761c2