Don't free a font that hasn't been created
Don't clear glyphs if the face was never created.
Remove no-longer-necessary KnownFail for python 3.2.
Adding rcParams option for axis.labelpad
Updating matplotlibrc.template
Add ability to use libpng-config to get linker flags
Refactored LightSource.shade_rgb into three separate functions
Added support for vertical exag and non-uniform spacing to LightSource
Added new blending modes to LightSource for more realistic rendering
Updated shading example to show new styles and added exmaple DEM from SRTM data
Change num lines to int in hatch.

Fixes numpy issues warnings
Index with an integer in test_axes
Number of verts in simplification is an int

Fixes numpy warnings in indexing
Explicite cast to int in colors
Cast steps to integer in cbook
Cast to integer in bezier for indexing
Cast to integer in contour

as suggested by comment
Integer division in mlab test
Integer division in trirefine
Filter warnings in rcparams test.