stuff(keep better track...)
Added thing.tracker.json to on_absence
mostly minor
added/modified some documentation, distinguish different povray uses, some other stuff
Changed javascript to be non-indexed, changed gallery to use sub-elements
Renamed elements to el and subelements to sel for conciseness
Didnt catch everything pertaining to the elements renaming before
also some hammering on the javascript, however it doesnt draw the 3d models currently.
Made povray-only version work properly, got rid of "rootlike/bin/figure_image"
reorganized things a bit better