Further improve colormap discussion.

Remove unused global cmd_split variable.

Added an entry for mpl-scatter-density in the third-party tools page

Fix a few instances in the documentation where http(s):// git
URIs contained a colon rather than a slash to separate the host
from the path.

Using a colon is malformed, and results in an error (at least on
my git 2.13.3, perhaps other versions try harder to guess):

```
$ git clone https://github.com:matplotlib/matplotlib.git
Cloning into 'matplotlib'...
fatal: unable to access 'https://github.com:matplotlib/matplotlib.git/':
Port number ended with 'm'
```

The previous order was a bit of a mess.

I went for

    set_xfoo, get_xfoo, set_yfoo, get_yfoo

although

    set_xfoo, set_yfoo, get_xfoo, get_yfoo

would probably have worked equally well.

Correct https git URIs in documentation

The passed argument would be modified by function while it not designed to.

Convert dviread to use lru_cache.

BLD: Fix some bugs in `setupext.py`

Large width/height triggers a different code path that didn't correctly
draw limited arcs instead of the whole ellipse.

Fixes #9659.

Previously, if we had a pointer to an old timer when calling start(), we
would manually get the context for the old timer and from there get a
pointer to the attribute. The problem is that for a single-timer, the
timer is automatically invalidated (and context cleared) at the end.
This resulted in trying to Py_DECREF(0x0).

To fix this, use the built-in support for a callback to run when the
context is released. By doing so, we can also clean up a lot of code to
release the reference in stop() as well.

Simplifies things just a bit.

Group setting all attributes together. Use NULL (rather than 0) where
appropriate for clarity.

Fix arcs with very large width/height.

Fix spelling in coment

DOC: Update agg_oo_sgskip.py

Pin pandas on appveyor too

Reoder Axes API docs.

…xample

DOC: Updates multiprocessing example.

Modified rrulewraper to handle timezone-aware datetimes.

Polar tick fixes

Deprecate unused ContourLabeler.get_real_label_width.

less_simple_linear_interpolation can be replaced by np.interp.

BLD: Switch to makefile-based doc build

Add context to where this method came from.

API: Deprecate Artist.onRemove, Artist.hitlist.

- Deprecate unused RendererAgg.debug variable.
- Passing debug=False to _RendererAgg has no effect (PyRendererAgg_init
  actually ignores kwds, and doesn't do anything with debug if it is
  passed positionally either).
- Moved a comment that was at the wrong line.
- Wrapped lines to 79 chars; removed allowance in pep8 checker.

Fix up some incorrect bits in Rectangle

Remember to update x1/y1 when setting x0/y0

Add methods to update x1/y1

Deprecate unused FigureManagerBase.show_popup.

(Avoids cluttering the source directory.)

MNT: backend_agg cleanup.

In unit/memleak, write to in-memory buffer instead of file.

Unify (parametrize) test_composite across backends.

Use left/right top/bottom instead of width/height in Rectangle

Use command keys for window shortcuts in Qt on OSX

Cleanup delaxes()