- solidify/Makefile: use povray +P, to keep showing the image when done
- solidify/main.pov: moved lower light source from x- to x+ and lowered it a
bit more
- solidify/main.pov: doubled the intensity of the ambient light
- solidify/main.pov: rotate the part in xy and add a thin red plane to help
with assessing the accuracy of z0 inclination (the top of the battery
cover turned out to be very difficult to get right with solidify alone)
- solidify/main.pov: added a third view of the part
