Rename wp.xhr to wp.ajax to match admin-ajax.php (which it uses), jQuery.ajax (which it wraps), etc. see #24424.



git-svn-id: http://core.svn.wordpress.org/trunk@24652 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-beta4-24653.

git-svn-id: http://core.svn.wordpress.org/trunk@24653 1a063a9b-81f0-0310-95a4-ce76da25c4cd