Remove double-strip on HTTP_IF_NONE_MATCH, which was done years ago (in #2597). see #21767.


git-svn-id: https://core.svn.wordpress.org/trunk@23573 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: better styles for no-results views (empty search, empty archives) for small screens. Props johnbillion, fixes #23544.

git-svn-id: https://core.svn.wordpress.org/trunk@23574 1a063a9b-81f0-0310-95a4-ce76da25c4cd