Small typo in the license.
Added option to show/hide Source link in plot_directive
Added html to option name
Merge pull request #2644 from arokem/license_typo

Small typo in the license.
Update backend_webagg.py

Change WebAgg backend to handle stale figure UI controls in the browser
Update mpl.js

We are generating 'ReferenceError: figure is not defined' when we try to download a figure into a particular image type.
Merge pull request #2645 from loicseguin/show-source-link

Add option to show/hide the source link in plot_directive
plot_date: Set the default fmt to 'o'

Different to just plot() plot_date() has a default plot format string
which makes it necessary to *unset* the default one when drawing
multiple sequences of dates in a figure to get a working color cycling.
It also was not exactly clear that Axes.set_color_cycle was setting the
color cycle for every plot command except for plot_date ones.

It was of course possible to simply unset it after reading the
documentation but that's not the path of least suprise.

The default fmt of 'o' will keep the markers by default (which makes
sense for dates) but allows color cycling to happen.

This is related to issue #2148
Merge pull request #2641 from mineo/plot-date-fmt

plot_date: Set the default fmt to 'o'
Merge pull request #2648 from JamesMakela/master

Update backend_webagg.py