About page for WordPress 3.5, first pass. Not yet offered for translation....

About page for WordPress 3.5, first pass. Not yet offered for translation. props lessbloat, johnbillion. see #22455.



git-svn-id: https://core.svn.wordpress.org/trunk@22814 1a063a9b-81f0-0310-95a4-ce76da25c4cd