zoom in on auditory/vestibular/sensorymotor systems
zoom in on the visual system
added opsins of the retina
added some tongue receptors
allow generation of multiple graphs with generate.sh
overhauled generate.sh/convert.py
added Tongue node
removed dia/, it's old and obsolete
moved /oc to /openconnectome for clarity
moved /dot/ to / for simplicity
renamed /generate.sh to /build.sh for clarity