remove extra files

git-svn-id: https://plugins.svn.wordpress.org/jonimo-simple-redirect/trunk@875093 b8457f37-d9ea-0310-8a92-e5e31aec5664
change to readme

git-svn-id: https://plugins.svn.wordpress.org/jonimo-simple-redirect/trunk@875096 b8457f37-d9ea-0310-8a92-e5e31aec5664