Shortcut for print. Disabled by default and controlled by
wgMinervaDownloadIcon
Note that with lazy images enabled, images will not appear
in the printed article. This can be easily addressed inside
the onClick function in a later patchset with a few modifications
to the Skin class.
Currently the flag when enabled will show on all browsers. There
are some open questions on the ticket about how we want to limit
the feature. This shouldn't block review or merging.
Bug: T177215
Change-Id: I49f1736870c743990b3fb9916247e07a597b2f59
