Twenty Fourteen: remove unneeded `.single-attachment` body class selectors, props iamtakashi. Fixes #25541, see #25506.
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Twenty Fourteen: remove unnecessary `no-sidebar` class value in front page template. Props iamtakashi, fixes #25543.
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git-svn-id: http://core.svn.wordpress.org/trunk@25651 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Upgrader: Create Directories with a minimum of 0755 and files with a minimum of 0644 when upgrading, which matches pre-3.7 behaviour. Fixes #20069

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Twenty Fourteen: minor color contrast and a11y fixes, see #25054.
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git-svn-id: http://core.svn.wordpress.org/trunk@25653 1a063a9b-81f0-0310-95a4-ce76da25c4cd