Check that we have a database connection in wpdb::_real_escape(). see #24773.



git-svn-id: http://core.svn.wordpress.org/trunk@24758 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add a default post_title value to wp_insert_attachment() to avoid a notice when there is no ID3 title.

props wonderboymusic.
see #24805.



git-svn-id: http://core.svn.wordpress.org/trunk@24759 1a063a9b-81f0-0310-95a4-ce76da25c4cd