Twenty Fourteen: performance win by reducing the number of post thumbnail sizes needed in the theme. Props iamtakashi, closes #25876.
Built from https://develop.svn.wordpress.org/trunk@26047


git-svn-id: http://core.svn.wordpress.org/trunk@25972 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Fourteen: fix case of featured posts `has_tag()` check that was adding an empty `footer` element. See #25868, props iamtakashi.
Built from https://develop.svn.wordpress.org/trunk@26048


git-svn-id: http://core.svn.wordpress.org/trunk@25973 1a063a9b-81f0-0310-95a4-ce76da25c4cd