Kleiber's Law dictates that metabolic rate scales
with the 3/4ths power of mass, rather than linearly.

Also update the Illustrator scripts

Also adds an Illustrator script that automatically
handles all of the tracing

This adds a CR1632 button cell

Also fix broken attribution for utility poles

(just a credit card for now, though). This also introduces some fixes
to the process-model script, allowing for it to compensate for the
extra height introduced by the line art. blender-model.py is adjusted
to allow for this, and makeModel() now checks for the bottom/extra
values produced by the process.