Updated to version 1.4

git-svn-id: https://plugins.svn.wordpress.org/simple-page-transition/trunk@845203 b8457f37-d9ea-0310-8a92-e5e31aec5664
modification on readme.txt

git-svn-id: https://plugins.svn.wordpress.org/simple-page-transition/trunk@845207 b8457f37-d9ea-0310-8a92-e5e31aec5664