Twenty Thirteen: use new HTML5 comment form argument, and adjust CSS selectors a bit. Closes #23702, see #15080.

git-svn-id: http://core.svn.wordpress.org/trunk@23690 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Logged out warnings: clear previous errors when interim_login is set, see #23295

git-svn-id: http://core.svn.wordpress.org/trunk@23691 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Logged out warnings, heartbeat: remove nopriv_autosave as it doubles the functionality of the logged out warnings, move wp_ajax_nopriv_heartbeat() under No-privilege Ajax handlers in ajax-actions.php, see #23295, see #23216

git-svn-id: http://core.svn.wordpress.org/trunk@23692 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Local autosave: set a temp cookie on submitting the form and change it on redirecting after the post is saved/updated, then use it to determine if saving worked properly. Removes the chance for false positives after saving/updating a post. See #23220

git-svn-id: http://core.svn.wordpress.org/trunk@23693 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve wp_list_comments() markup.

* Whitespace cleanup
* Accepts format=html5 which uses some of the HTML5 elements
* Some helpful HTML comments to help untangle the HTML
* Other misc code cleanup

props lancewillett, obenland, georgestephanis. fixes #20088.

git-svn-id: http://core.svn.wordpress.org/trunk@23694 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-alpha-23695.

git-svn-id: http://core.svn.wordpress.org/trunk@23695 1a063a9b-81f0-0310-95a4-ce76da25c4cd