add export files

git-svn-id: https://plugins.svn.wordpress.org/pre-draft-camps/trunk@859415 b8457f37-d9ea-0310-8a92-e5e31aec5664
update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/pre-draft-camps/trunk@859416 b8457f37-d9ea-0310-8a92-e5e31aec5664