Twenty Thirteen: style native `mediaelement` video player with a black background color. Props obenland, closes #23821.

git-svn-id: http://core.svn.wordpress.org/trunk@23835 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Rename the_extra_content() to the_remaining_content().

fixes #23877.

git-svn-id: http://core.svn.wordpress.org/trunk@23836 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: better back compat handling by moving version compare before the include to avoid loading the file altogether. Also prevent Customizer views. Props obenland, closes #23819.

git-svn-id: http://core.svn.wordpress.org/trunk@23837 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: back compat file PHPDoc updates, thanks DrewAPicture for the nudge. See #23819.

git-svn-id: http://core.svn.wordpress.org/trunk@23838 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: improvements to Image post format handling to use a custom image size instead of filtering a `$content_width` variable.

Includes CSS cleanup and markup improvements to both video and image templates, moving the media HTML piece out of the `header` element.

Props obenland, closes #23620.

git-svn-id: http://core.svn.wordpress.org/trunk@23839 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Move the "look for the first media attachment" code below the "look
in the post content for media" code, so that it is the method of last
resort. This way, if you attach AND embed media, you won't get duplication.

fixes #23879

git-svn-id: http://core.svn.wordpress.org/trunk@23840 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Bundled themes: remove cases of `:active` and `:hover` pseudo-class selectors used for accessibility. These cases need `:focus` only. See r23783 and #23803.

git-svn-id: http://core.svn.wordpress.org/trunk@23841 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use the wp_insert_post hook to save revisions, so we save revisions for
an initial wp_insert_post() run, not just updates.

see #16215

git-svn-id: http://core.svn.wordpress.org/trunk@23842 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Post Format UI.

* Icons
* Selection
* Prompt text
* Special fields
* Styling
* Sparkles

This is going to need testing, polish, and love.

see #19570. props melchoyce, helen, wonderboymusic, lessbloat, rachelbaker, aaroncampbell, DrewAPicture, ryelle.

git-svn-id: http://core.svn.wordpress.org/trunk@23843 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Nav Menus help tab updates.

fixes #23608. props DrewAPicture, Ipstenu, JerrySarcastic.

git-svn-id: http://core.svn.wordpress.org/trunk@23844 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Post Format prompt copy tweaks. props sabreuse. see #19570

git-svn-id: http://core.svn.wordpress.org/trunk@23845 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-alpha-23846.

git-svn-id: http://core.svn.wordpress.org/trunk@23846 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add compat code for 'image' post format.

see #19570. props wonderboymusic.

git-svn-id: http://core.svn.wordpress.org/trunk@23847 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Thirteen: simpler name for custom image size for image post formats, see #23620.

git-svn-id: http://core.svn.wordpress.org/trunk@23848 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Post revisions:

- Always update the revision version when updating post authors.
- Check if revisions have been updated and return early.
- Update the revisions by direct query to avoid resetting post_modified.
- Fix a bug where we may be comparing with an autosave but need to compare with the latest revision.

Fixes #16215.

git-svn-id: http://core.svn.wordpress.org/trunk@23849 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Clean up mixed spaces/tabs in post-formats.js

git-svn-id: http://core.svn.wordpress.org/trunk@23850 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Defer JS to document ready

git-svn-id: http://core.svn.wordpress.org/trunk@23851 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-alpha-23852.

git-svn-id: http://core.svn.wordpress.org/trunk@23852 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use jQuery.on() properly. Add some slideUp()/slideDown() transitions to ease post format switches. see #19570

git-svn-id: http://core.svn.wordpress.org/trunk@23853 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Do not attempt a slide transition if the current and switched-to post
formats both have no UI. Do not slide if clicking on the current format.

see #19570

git-svn-id: http://core.svn.wordpress.org/trunk@23854 1a063a9b-81f0-0310-95a4-ce76da25c4cd