fix version in class comment

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-paystand/trunk@1040805 b8457f37-d9ea-0310-8a92-e5e31aec5664
fix version in plugin file comment

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-paystand/trunk@1040807 b8457f37-d9ea-0310-8a92-e5e31aec5664