Compress scripts/styles: 3.6-beta3-24270.

git-svn-id: http://core.svn.wordpress.org/trunk@24270 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Logged out warnings: by default run the logged-out check every 3 min. Tag along if something else is using heartbeat. See #23295

git-svn-id: http://core.svn.wordpress.org/trunk@24271 1a063a9b-81f0-0310-95a4-ce76da25c4cd