matplotlib Code

Earlier versions of pygtk don't have a pygobject version

Don't import commands if running on Windows

Refactor distutils script to display information about the extensions
being built. Use pkg-config to find freetype if possible.

The matplotlib._isnan module removed (use numpy.isnan)

revert r3512, which broke on Mac

finished numpification of extension code and axes.py

Removed our own MPL_isnan.h in favor of numpy's implementation

Add TTF subsetting to backend_pdf.py.

First pass of Type 3 font subsetting for Postscript backend. Made
ttconv code exception and threadsafe. Added subsetting.

Make nxutils numpy-only