slimmer `article_actions.png` for docs
|Reported by:||smcoll||Owned by:||nobody|
|Cc:||Triage Stage:||Ready for checkin|
|Has patch:||yes||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
article_actions.png image at http://docs.djangoproject.com/en/dev/ref/contrib/admin/actions/ is unnecessarily wide, which makes the page look awkward when viewed with a browser window less than 1100px wide: the image breaks out of the column and over the green sidebar.
Since there is a bit of extra "whitespace" in the image, i re-saved a trimmed-down copy that could be used in its place. Coincidentally, it's 38% the filesize, as well.