RTL fix for MediaElement.js video controls. Also filed upstream. fixes #24897. for trunk.



git-svn-id: https://core.svn.wordpress.org/trunk@24924 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add screenshots and video to about page. props markjaquith. fixes #24832. for trunk.



git-svn-id: https://core.svn.wordpress.org/trunk@24926 1a063a9b-81f0-0310-95a4-ce76da25c4cd