Download patch
ref: c3d286cf66643e0ccf088ccdf2df24061d5f8c0c parent: f719589b3867d2a167fead6e990de8a3edb9d1b3 author: Paul Brossier <piem@piem.org> date: Fri Feb 8 23:30:22 EST 2013
README.md: add pip install matplotlib