Make rendering multiples types of images possible.
Revert "Ignore generated PDFs and data."

This reverts commit 67120a3cecdd83dd2f4e7010ac0cf4365cb6f71b.
Add our extraneous files to gitignore.
Lower resolution we render tex at.
Merge branch 'master' of https://github.com/presidential-monkey-conspiracy/hazardous-vocabulary-overdrive
WIP graph fix.