matplotlib Code

Use svn:external to pull-in mathtex.

check for nonuniform grid spacing when using inter='linear' in griddata.
update griddata_demo.py (negative seeds not allowed in numpy svn mtrand)

add 'interp' keyword to griddata. Can be set to 'linear' to get faster
linear interpolation using Delaunay package. Default is 'nn' (natural
neighbor).

Really fix the PS alignment issues with mathtex.

Rename _mathtext_data.py to _font_data.py and remove unused tables from it.

Remove mathtext.py from matplotlib and fix a bug in the OS X backend.

Port the OS X backend over. I am unable to test this at the current time.

Improved boilerplate.py so that it generates the correct signatures for pyplot functions.

Remove the mathtext include from the Qt3 backend.

Port the menu example over to mathtex. Fonts could use some work.