Fixed bug where no users could reorder plugins if site was not a multisite install.

git-svn-id: https://plugins.svn.wordpress.org/plugin-organizer/trunk@861681 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed bug where no users could reorder plugins if site was not a multisite install.

git-svn-id: https://plugins.svn.wordpress.org/plugin-organizer/trunk@861726 b8457f37-d9ea-0310-8a92-e5e31aec5664