fixed compatibility issue with Wordpress 3.8

git-svn-id: https://plugins.svn.wordpress.org/humans-only/trunk@823667 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated readme.txt

git-svn-id: https://plugins.svn.wordpress.org/humans-only/trunk@823675 b8457f37-d9ea-0310-8a92-e5e31aec5664