Multisite: Add a filter to get_space_allowed() and increase its internal default value to the network default.

props jkudish for initial patch.
fixes #23650.


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Format WordPress in <title> tags produced by wp_title().

props evansolomon.
fixes #19211.


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Fix various typos in inline documentation. props nofearinc, fixes #25119.

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Fix typo in phpdoc. props jamescollins. fixes #25092.
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Remove unused variable. props jeremyfelt. fixes #25121.
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Remove redundant context for Child Themes link. fixes #25079.
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Correct phpdoc for wp-admin/menu.php. props neoxx. fixes #25124.
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git-svn-id: http://core.svn.wordpress.org/trunk@25082 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add description for _wp_timezone_choice_usort_callback(). props neoxx. fixes #25125.
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Actually display customizer section descriptions in a meaningful way. props obenland, helen. fixes #24392.

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Add network name to <title> tags in the network admin and user admin (global dashboard).

props johnbillion.
fixes #19753.


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git-svn-id: http://core.svn.wordpress.org/trunk@25085 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add filters to the recipients of emails sent by wp_notify_postauthor() and wp_notify_moderator().

The new filters are called comment_notification_recipients and comment_moderation_recipients.

Add the context of $comment_id to the comment_moderation_headers filter, to match the comment_notification_headers filter.

props chipbennett.
fixes #22922, #20353.


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