Dashboard: Restore a line that vanished from my editor to print recently published posts. Also fix an off-by-one error.

see [26704]. see #26066.

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git-svn-id: http://core.svn.wordpress.org/trunk@26630 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing about.color-schemes.png. See #26387.
Built from https://develop.svn.wordpress.org/trunk@26742


git-svn-id: http://core.svn.wordpress.org/trunk@26631 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Responsive menu: fix calculation of the responsive trigger width from JS. It is affected by a vertical scrollbar width in some browsers. See #26458.
Built from https://develop.svn.wordpress.org/trunk@26743


git-svn-id: http://core.svn.wordpress.org/trunk@26632 1a063a9b-81f0-0310-95a4-ce76da25c4cd