Background Updates: Fix a PHP Fatal error which could be encountered on some systems when using FTP. Fixes #25817 for trunk.

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Background Updates: Spread them over the hour. Props Pento. Fixes #25833 for trunk 

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Twenty Fourteen: make sure styles for featured content on a static page are limited to posts within the main content area. Props iamtakashi, fixes #25938.
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Twenty Fourteen: remove unused class name, props obenland. See #25946.
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Twenty Fourteen: simplify and prefix post thumbnail sizes, props obenland. See #25946.
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Twenty Fourteen: first pass at adding help text to to "Help" tab for `edit.php` and `themes.php` screens. Props obenland for starter patch, see #25837.
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Twenty Fourteen: fix tabs to spaces in two files. See #25946.
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Background Updates: Add a 'automatic_updates_complete' hook that fires after any updates have run. Props pento. Fixes #25841

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Avoid jshint errors in edit-comment.js.

props adamsilverstein.
fixes #25979.

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JSHint: Make commentReply a declared global from elsewhere.

props adamsilverstein.
see #25979, [26156].

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Fix JSHint errors in custom-header.js and custom-background.js.

props jorbin.
fixes #25915, #25916.

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Fix JSHint errors in the old XML-based ajax response JS.

props OriginalEXE.
fixes #25954.

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Fix JSHint errors in admin-bar.js.

props kadamwhite.
fixes #25970.

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Fix JSHint errors in media-views.js.

props kadamwhite.
fixes #25974.

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Fix JSHint errors (again) for revisions.js.

props adamsilverstein.
fixes #25955.

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Fix JSHint errors in nav-menu.js.

props atimmer.
fixes #25953.

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Bacground Updates: Move the 'automatic_updates_complete' hook to only fire when some updates have actually been completed. Props nacin. Fixes #25841

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