matplotlib Code

Fix image maps in inheritance diagrams.

Remove warnings in _delaunay.cpp and consolidate duplicate cleanup code (so it doesn't have to be manually kept in sync).

use 'import numpy as np'

Fix memory leaks in ttconv (that manifest themselves in the PDF and PS backends).

Don't use fancy Unicode on a narrow Python build.

Warn when using Wx backend with wxPython < 2.8

Deal with markers correctly for interpolating transformations. (Thanks Jae-Joon Lee for finding this.)

added masked array support to griddata

another try at wx

updated download instructions.