First pass at `wpview` logic for the `[embed]` shortcode. URLs on a their own line are parsed as well. The toolbar will appear with the "remove" button when the view is clicked. Edit has not been implemented yet.

Props avryl, wonderboymusic.
See #28195.


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git-svn-id: http://core.svn.wordpress.org/trunk@28186 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove the `title` attribute from markup generated in `wp-includes/category-template.php`:

* `get_category_parents()`
* `get_the_category_list()`
* `wp_generate_tag_cloud()`
* `Walker_Category::start_el()`	

Props joedolson.
Fixes #26557.	


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git-svn-id: http://core.svn.wordpress.org/trunk@28187 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In `WP_Terms_List_Table::single_row()`, call `sanitize_term()` on the passed term (`$tag`).

Props oso96_2000, c3mdigital, scribu. 
It takes a village.
Fixes #16864.

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git-svn-id: http://core.svn.wordpress.org/trunk@28188 1a063a9b-81f0-0310-95a4-ce76da25c4cd
MediaElement players need `clear: both` to play nice with adjacent floated elements.

Fixes #27385.


Built from https://develop.svn.wordpress.org/trunk@28361


git-svn-id: http://core.svn.wordpress.org/trunk@28189 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In `get_the_author_posts()`, if there is no current `$post`, return `0` and bail.

Props krogsgard, aaroncampbell.
Fixes #27998.


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git-svn-id: http://core.svn.wordpress.org/trunk@28190 1a063a9b-81f0-0310-95a4-ce76da25c4cd