* Add `wp.media.mixin`.
* Add `wp.media.audio` and `wp.media.video`.
* Add `wp.media.model.PostAudio` and `wp.media.model.PostVideo`
* Add `wp.media.controller.AudioDetails` and `wp.media.controller.VideoDetails`.
* Add `wp.media.controller.ReplaceAudio` and `wp.media.controller.ReplaceVideo`.
* Add `wp.media.view.MediaFrame.AudioDetails` and `wp.media.view.MediaFrame.VideoDetails`.
* Add `wp.media.view.AudioDetails` and `wp.media.view.VideoDetails`.
* Update the `wpgallery` TinyMCE plugin.
* Display audio and video players in the media modal when shortcode is clicked.
* Provide a UI to edit shortcode attributes in the media modal.
* Provide a UI to replace the `src` media file in an `audio` or `video` shortcode.
See #27016.
Built from https://develop.svn.wordpress.org/trunk@27411
git-svn-id: http://core.svn.wordpress.org/trunk@27258 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Playlists operate like galleries in the admin.
* Provide default UI and JS support in themes using MediaElement and Backbone.
* The shortcodes are clickable, editable, and configurable using the media modal.
* Playlists support images for each item, whether or not the current theme supports images for `attachment:audio` and `attachment:video`
* Playlists respond to `$content_width` and resize videos accordingly.
* All playlist data is included inline, using a script tag with `type="application/json"`, allowing anyone to unenqueue the WP playlist JS and roll their own.
* Playlist styles are minimal and work out of the box in the last 5 default themes. They inherit and adapt to the current theme's font styles, and their rules are easily overrideable.
See #26631.
Built from https://develop.svn.wordpress.org/trunk@27239
git-svn-id: http://core.svn.wordpress.org/trunk@27096 1a063a9b-81f0-0310-95a4-ce76da25c4cd
