tinymce 4.0 fix

git-svn-id: https://plugins.svn.wordpress.org/free-stock-photos-foter/trunk@1047005 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme testup update

git-svn-id: https://plugins.svn.wordpress.org/free-stock-photos-foter/trunk@1047014 b8457f37-d9ea-0310-8a92-e5e31aec5664