Compress scripts/styles: 3.6-alpha-23852.

git-svn-id: http://core.svn.wordpress.org/trunk@23852 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use jQuery.on() properly. Add some slideUp()/slideDown() transitions to ease post format switches. see #19570

git-svn-id: http://core.svn.wordpress.org/trunk@23853 1a063a9b-81f0-0310-95a4-ce76da25c4cd