Media Grid: while in Bulk Edit mode, any selected attachment should have the blue border, rather than just the last clicked one.

Props ericlewis.
See #24716.

Built from https://develop.svn.wordpress.org/trunk@29081


git-svn-id: http://core.svn.wordpress.org/trunk@28867 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Grid: make the Uploader closable.

Props ericlewis.
See #24716.

Built from https://develop.svn.wordpress.org/trunk@29082


git-svn-id: http://core.svn.wordpress.org/trunk@28868 1a063a9b-81f0-0310-95a4-ce76da25c4cd