matplotlib Code

return masked array if data equals default netcdf _FillValue for that
data type.

added unit support to arc

Update unit test to use Arc instead of Ellipse.

Add size-dependent highly-accurate arc drawing.

Major speed improvement for non-rectilinear projections.

Remove Mollweide from options, since it's currently broken anyway.

I can't spell ;(

Minor speedup by not calculating the position of ticks/grids/text that
aren't there.

Minor efficiency improvement.

Minor bugfix in polar transforms.