Hide Media button for Status and Aside post types.

props kovshenin. fixes #24013.

git-svn-id: http://core.svn.wordpress.org/trunk@24037 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-beta1-24038.

git-svn-id: http://core.svn.wordpress.org/trunk@24038 1a063a9b-81f0-0310-95a4-ce76da25c4cd