Better naming of variables

git-svn-id: https://plugins.svn.wordpress.org/related/trunk@908125 b8457f37-d9ea-0310-8a92-e5e31aec5664
Small fix for readme

git-svn-id: https://plugins.svn.wordpress.org/related/trunk@908128 b8457f37-d9ea-0310-8a92-e5e31aec5664