matplotlib Code

Added Barbs polygon collection (similar to Quiver) for plotting wind barbs. Added corresponding helpers to Axes and pyplot as well. (examples/pylab_examples/barb_demo.py shows it off.)

Added Gael's backend fallback patch

Adding more functionality for interacting with figure windows through
mouse clicks and keyboard clicks. This includes adding a
waitforbuttonpress function, as well as manual contour label location
selection for clabel. The underlying Blocking* classes that drive
this interaction have been moved into a separate file
"lib/matplotlib/blocking_input.py". Also added a changelog entry.

added support for pixels or data min coords to the rectangle selector widget

added findobj

axes was not calling artist set_axes method in set artist props

Fix bug: [ 1978629 ] scale documentation missing/incorrect for log

Fix rgrids and thetagrids.

Lots of docstring formatting fixes.

Try again to make temporary fix for backend case-sensitivity