pro version buy

git-svn-id: https://plugins.svn.wordpress.org/pit-login-welcome/trunk@839680 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme updated

git-svn-id: https://plugins.svn.wordpress.org/pit-login-welcome/trunk@839683 b8457f37-d9ea-0310-8a92-e5e31aec5664