4.1 version bumps.

see [29712], #29537.
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Don't display Edit links for posts and terms in toolbar if they are empty.

props boonebgorges.
fixes #29538.
Built from https://develop.svn.wordpress.org/trunk@29714


git-svn-id: http://core.svn.wordpress.org/trunk@29488 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Check for [\r\n\t ] instead of \s in sanitize_file_name() to avoid UTF-8 issues.

props p_enrique.
fixes #26094.
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Use home URL instead of example.org on Permalink Settings screen.

props voldemortensen, jesin.
fixes #29509.
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Use get_registered_nav_menus() in has_nav_menu().

props voldemortensen.
fixes #29461.
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git-svn-id: http://core.svn.wordpress.org/trunk@29491 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Declare $site_mimes before using it in check_upload_mimes().
* Use the same default value for 'upload_filetypes' as on Network Settings screen.

props rmccue.
fixes #29512 for trunk.
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Twenty Fourteen: Use correct check for the front page in Featured_Content::pre_get_posts().

props kwight.
fixes #29550.
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git-svn-id: http://core.svn.wordpress.org/trunk@29493 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove 'WordPress Language' reference from wp-config-sample.php.

props voldemortensen.
see [29630]. fixes #29562.
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git-svn-id: http://core.svn.wordpress.org/trunk@29494 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use https for apps.wordpress.org links.

props pento.
fixes #29595 for trunk.
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Add 'Unattached' filter for galleries.

props pento.
fixes #29329.
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git-svn-id: http://core.svn.wordpress.org/trunk@29496 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't display Edit links for attachments user cannot edit.

props skaeser.
fixes #29596 for trunk.
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git-svn-id: http://core.svn.wordpress.org/trunk@29497 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Avoid PHP notices in media modal caused by orphaned attachments.

fixes #29566 for trunk.
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git-svn-id: http://core.svn.wordpress.org/trunk@29498 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Make sure we're on the media grid page before calling wp.media().

props azaozz.
fixes #29520 for trunk.
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Widgets: Toggle widget arrow when the widget is closed using Close link.

props senff.
fixes #29617.
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git-svn-id: http://core.svn.wordpress.org/trunk@29500 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Frames: Set the box-sizing CSS property to border-box for checkboxes and radio buttons.

props mlteal.
see #29493.
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git-svn-id: http://core.svn.wordpress.org/trunk@29501 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't overwrite the `length` property unnecessarily when generating metadata for audio and video files.

Props jrf, wonderboymusic.
Fixes #29176.

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git-svn-id: http://core.svn.wordpress.org/trunk@29502 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media: revert enabling of multi-file uploading for mobile devices. Currently only iOS Safari supports it but has a bug that prevents uploading of videos. Fixes #29602
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TinyMCE: fix image captions regexp when wpautop is disabled in wp_editor(). Fixes #29592 for trunk.
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XML-RPC: Check if category support was added for pages before calling wp_get_post_categories() to avoid unnecessary query in wp.getPage.

props markoheijnen, nprasath002.
fixes #17920.
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Skip ALTERNATE_WP_CRON redirect when performing XML-RPC requests.

props markoheijnen.
fixes #27447.
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