only published posts will appear on the wire

git-svn-id: https://plugins.svn.wordpress.org/nuwire-paper-boy/trunk@880571 b8457f37-d9ea-0310-8a92-e5e31aec5664
modified readme

git-svn-id: https://plugins.svn.wordpress.org/nuwire-paper-boy/trunk@880573 b8457f37-d9ea-0310-8a92-e5e31aec5664