readme

git-svn-id: https://plugins.svn.wordpress.org/page-expiration-robot/trunk@1010838 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixes

git-svn-id: https://plugins.svn.wordpress.org/page-expiration-robot/trunk@1010840 b8457f37-d9ea-0310-8a92-e5e31aec5664