matplotlib Code

updating pytz and dateutil -- HEAD will be broken temporarily

Fix interpolation in polar plots when theta values go negative. Thanks Jan Gillis for reporting.

validate num argument to figure()
Otherwise, the resulting exception can be obscure and delayed.

More colorbar docstring improvements.

colorbar docstring improvements: work in progress

committed Jae-Joons fancy box examples

committed Jae-Joons facy box and textbox patch

The previous fix broke the current behaviour of being able to explicitly set a new unit type for a
specific axis after it was already set. This fixes that.

reverted bogus renderer dpi addition to text cache key

added the renderer dpi to the cache key for text