Remove unused variable.

props ericlewis.
fixes #27176.


git-svn-id: https://develop.svn.wordpress.org/trunk@27227 602fd350-edb4-49c9-b593-d223f7449a82
Make sure color schemes are registered when WP_Styles is initialized early.

fixes #27175. see #26669.


git-svn-id: https://develop.svn.wordpress.org/trunk@27228 602fd350-edb4-49c9-b593-d223f7449a82
Make nav menu item add tabs and content consistent with similar tabs on the post edit screen. props corvannoorloos for the initial patch. fixes #26757.


git-svn-id: https://develop.svn.wordpress.org/trunk@27229 602fd350-edb4-49c9-b593-d223f7449a82
Remove unnecessary assignment and concatenation from the_date() and get_the_date().

props juliobox.
fixes #27181.

git-svn-id: https://develop.svn.wordpress.org/trunk@27230 602fd350-edb4-49c9-b593-d223f7449a82
Correct @return value for get_the_date().

props TobiasBg.
fixes #27181.

git-svn-id: https://develop.svn.wordpress.org/trunk@27231 602fd350-edb4-49c9-b593-d223f7449a82
Revert [27228], as it doesn't work with SCRIPT_DEBUG off.

see #27175.

git-svn-id: https://develop.svn.wordpress.org/trunk@27232 602fd350-edb4-49c9-b593-d223f7449a82
Update Backbone to version 1.1.2.

props gcorne.
fixes #27182.

git-svn-id: https://develop.svn.wordpress.org/trunk@27233 602fd350-edb4-49c9-b593-d223f7449a82
Bump.


git-svn-id: https://develop.svn.wordpress.org/trunk@27234 602fd350-edb4-49c9-b593-d223f7449a82
Correct PHPDoc return description for `get_boundary_post()`.

Props ericlewis.
Fixes #22950.


git-svn-id: https://develop.svn.wordpress.org/trunk@27235 602fd350-edb4-49c9-b593-d223f7449a82
Build: Update version of grunt-autoprefixer devDependency.

The update includes a new version of Autoprefixer which now supports the `ms-touch-action` prop for IE10.
Run `grunt autoprefixer:core` to re-add the missing props in media-view.css.

git-svn-id: https://develop.svn.wordpress.org/trunk@27236 602fd350-edb4-49c9-b593-d223f7449a82
Inline documentation for hooks in wp-admin/includes/template.php.

Props shelob9 for the initial patch. Props kpdesign.
Fixes #26089.


git-svn-id: https://develop.svn.wordpress.org/trunk@27237 602fd350-edb4-49c9-b593-d223f7449a82
Access class directly instead of using `this` in the `shortcodeAttrs` method of any factory-generated `wp.media.collection`.

Fixes #27183.



git-svn-id: https://develop.svn.wordpress.org/trunk@27238 602fd350-edb4-49c9-b593-d223f7449a82
Add core support for Playlists and Video Playlists.

* 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.



git-svn-id: https://develop.svn.wordpress.org/trunk@27239 602fd350-edb4-49c9-b593-d223f7449a82
Inline documentation improvements for `wp_get_playlist()`.

* Adds a missing `@param` description in the PHPDoc.
* Adds hook documentation for the `post_playlist` filter.
* Other comment cleanup.


git-svn-id: https://develop.svn.wordpress.org/trunk@27240 602fd350-edb4-49c9-b593-d223f7449a82
Spacing fixes for code introduced in [27239].

See #26631


git-svn-id: https://develop.svn.wordpress.org/trunk@27241 602fd350-edb4-49c9-b593-d223f7449a82
Load default settings state when creating a new playlist in the media modal. Add a few missing inline `@this` annotations in `media-editor.js`.

See #26631.



git-svn-id: https://develop.svn.wordpress.org/trunk@27242 602fd350-edb4-49c9-b593-d223f7449a82
Remove a few unnecessary jQuery selectors added in [27239]. Playlists don't exist in some older contexts that galleries do.

See #26631.



git-svn-id: https://develop.svn.wordpress.org/trunk@27243 602fd350-edb4-49c9-b593-d223f7449a82
Supply mime-type instead of extension for an item's `type` property in playlist JSON.

See #26631.



git-svn-id: https://develop.svn.wordpress.org/trunk@27244 602fd350-edb4-49c9-b593-d223f7449a82
Get the proper image size for an item's thumb in playlist JSON.

See #26631.



git-svn-id: https://develop.svn.wordpress.org/trunk@27245 602fd350-edb4-49c9-b593-d223f7449a82
Add Oxford comma to password hint.

props trepmal.
fixes #26457.

git-svn-id: https://develop.svn.wordpress.org/trunk@27246 602fd350-edb4-49c9-b593-d223f7449a82