New reorder feature + optimizations/updates.

git-svn-id: https://plugins.svn.wordpress.org/draupnir-ringmanager/trunk@855995 b8457f37-d9ea-0310-8a92-e5e31aec5664
Security and improved compatability

git-svn-id: https://plugins.svn.wordpress.org/draupnir-ringmanager/trunk@859794 b8457f37-d9ea-0310-8a92-e5e31aec5664