matplotlib Code

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.

add MANIFEST.in, make __version__ a string.

add natgrid toolkit to docs, make basemap docs link to new online sphinx-generated version.

include link to new API docs.