Add firmware for AVR
Fix MOSFET drive circuitry
Add bookshelf-toolpath making script
Merge branch 'master' of https://github.com/willmurnane/electrical

Conflicts:
	poe-injector/poe-injector-cache.lib
	poe-injector/poe-injector.brd
	poe-injector/poe-injector.cmp
	poe-injector/poe-injector.net
	poe-injector/poe-injector.sch