matplotlib Code

make data files float32 binary, not float64 (save yet more space)
lats and lons are truncated to 3 decimal places, so they gzip better too.

specify endian-ness in dtype, instead of using byteswap()

fix typo (byteswapped() --> byteswap())

new data format (much smaller files)

Put a generic non-optimized draw_markers implementation in backend_bases.

Updating the simple_plot_fps benchmark.

Throw in dummy characters for symbols not in the Bakoma fonts.

Get wxagg extension working again. Factor out the new Bbox conversion
code into agg_py_transforms.h

Add a background color to the axes so it's easier to tell if there is
a bug in the masked values.

Small bugfix to compile on gcc 4.x (Thanks, Eric)