Skip ALTERNATE_WP_CRON redirect when performing XML-RPC requests.

props markoheijnen.
fixes #27447.
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git-svn-id: http://core.svn.wordpress.org/trunk@29506 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Upgrade MediaElement to 2.15.1.

Changes from 2.15.0:
https://github.com/johndyer/mediaelement/compare/2.15.0...2.15.1

Continues to revert upstream commit b7f82b4 to restore the status quo for Chromium support.

See [29688].
Fixes #29620 for trunk.

Built from https://develop.svn.wordpress.org/trunk@29733


git-svn-id: http://core.svn.wordpress.org/trunk@29507 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Update getID3 library to 1.9.8.

Changes:
https://github.com/JamesHeinrich/getID3/compare/1.9.7...v1.9.8

Fixes #29627.

Built from https://develop.svn.wordpress.org/trunk@29734


git-svn-id: http://core.svn.wordpress.org/trunk@29508 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Allow arbitrary subdomains for the oEmbed endpoint for Slideshare.

Props Latz.
Fixes #29427.

Built from https://develop.svn.wordpress.org/trunk@29735


git-svn-id: http://core.svn.wordpress.org/trunk@29509 1a063a9b-81f0-0310-95a4-ce76da25c4cd
After [29733], version bump for MediaElement.

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git-svn-id: http://core.svn.wordpress.org/trunk@29510 1a063a9b-81f0-0310-95a4-ce76da25c4cd