Pyptex

* Improved error reporting and pdb behavior. (commit 22e4b9b by Sébastien Loisel)

* Update version number (commit 29d1e3a by Sébastien Loisel)
* In pyp.print, allow to make (commit 0e3e07e by Sébastien Loisel)

* bugfixes for make-pypi-release script (commit 845c70c by Sébastien Loisel)
* Some bugfixes in make-pypi-release script (commit 14e2ac4 by Sébastien Loisel)
* Documentation fixes relating to pyp.pp(...) and added CHANGELOG.md (commit 02d94bb by Sébastien Loisel)

* Apparently, savefig(...) is buggy and canvas.print_figure(...) is better. (commit e531cdd by Sébastien Loisel)

* Bugfix -- somehow the I forgot to savefig the figures. (commit ad3dc9c by Sébastien Loisel)

* Bugfix. You can set fig.drawn = True to prevent it from getting auto-drawn at the end of the Python block. (commit 87d250c by Sébastien Loisel)
* Changes this patch were complicated but user-facing things, not so much. The major changes all have to do with matplotlib. (commit d31e0a9 by Sébastien Loisel)
* Impossible to unit test plotting, reverting the change. (commit 9f40cc6 by Sébastien Loisel)
* Having trouble getting the plots to be pixel-perfect reproducible. Added fuzz factor to comparison. (commit 6677603 by Sébastien Loisel)
* removing .fdb_latexmk files from repo (commit d79edde by Sébastien Loisel)
* removing an fls file from the repo (commit 17e056d by Sébastien Loisel)
* ignore fls files (commit 71ca1bb by Sébastien Loisel)
* Added unit test for plotting, sympy, and pyp.input (commit 634cbfc by Sébastien Loisel)