Better align the x icons with tag names. props TobiasBg. fixes #25050.

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git-svn-id: http://core.svn.wordpress.org/trunk@25016 1a063a9b-81f0-0310-95a4-ce76da25c4cd
wp_get_shortlink() improvements.

* Return shortlinks for pages and public CPTs.
* Return shortlinks even when cruft-free links are not enabled.
* Unit tests

Props sillybean, layotte, cais
fixes #18632
see #14760


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git-svn-id: http://core.svn.wordpress.org/trunk@25017 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Only set and run internal search for linking selected text if the panel is open. Make sure the focus is in the URL field whenever opening the linking modal to preserve previous behavior. props greuben. fixes #16276.

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git-svn-id: http://core.svn.wordpress.org/trunk@25018 1a063a9b-81f0-0310-95a4-ce76da25c4cd