GitLab

www/thumb directory. Putting it in the expwork directory causes the
.png file to saved in the users exp directory, and in the longterm
archive for the experiment (expinfo).

If we decide to keep NS files in the DB for longterm storage, we
should keep the .png files along with them (they are generally very
small, under 1k bytes).

Specify '0' to exit on success.

Fixed regexps to allow underscores.
('IDS_Eval/Bro_eval', for instance)

Stored in $TB/www/thumbs/,
with filenames generated by hashing random data with experiment name.
(Stored in vis_experiments table in db.)

New visualizer; uses "vis_nodes" table in database to store precomputed solutions.
Added "prerender" call to tbprerun and tbend.
"prerender_all" can be used to precompute vis solutions for all experiments.
Also, removed legacy vis cruft.