Fixing critical bug.

git-svn-id: https://plugins.svn.wordpress.org/redirection-reporting/trunk@783717 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added notes for 1.9.1

git-svn-id: https://plugins.svn.wordpress.org/redirection-reporting/trunk@783721 b8457f37-d9ea-0310-8a92-e5e31aec5664