Dependencies for the test problems run by test.verify:

* ptex2tex (pygments) and ptex2tex.sty style file (from ptex2tex)
* mako
* preprocess
* texlive-latex-extra (Ubuntu package) or movie15.sty LaTeX package
* sphinx
* docutils
* latex, dvipdf
* pdftk (just for the make.sh script in doc/tutorial)

