matplotlib Code

mplot3d: make Poly3DCollection ScalarMappable, support in Axes3D.plot_surface.
Fix-up and extend contours. Add examples.

mplot3d: update axes code, add support for '3D' text.
Split and add examples and begin documentation.

fix axes_grid/demo_parasite_axes.py

modifications to examples/docs to get them to build for the website

removed reserved name "as" from some examples

updated backend driver to find the new fill_between examples

renamed fill_between.py and fill_betweenx.py to have _demo postfix

added example to fill_between to show how to create multiple axes spans where a condition is true

added example to fill_between to show how to create multiple axes spans where a condition is true

added JJ's F/C two scale example