updated to work with wordpress 3.9

git-svn-id: https://plugins.svn.wordpress.org/advanced-uploader/trunk@900183 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated to work with wordpress 3.9

git-svn-id: https://plugins.svn.wordpress.org/advanced-uploader/trunk@900185 b8457f37-d9ea-0310-8a92-e5e31aec5664