matplotlib Code

Update pyparsing to get better error reporting from mathtext. Update
mathtext_examples to include "$$" as a test.

added sphinx template for doc unit

updated readme

api does not need to be renamed since it doesnt clash

renamed pylab examples dir to fix import breaks

cleaned up some imports to accord with coding guide

Describe polar-plot-specific zooming/panning.

forgot to plot circles in last plot (bluemarble background)

some ports of the old locators and formatters to the new api

don't use runtime_library_dirs on windows