Updated version number

git-svn-id: https://plugins.svn.wordpress.org/duracelltomi-google-tag-manager/trunk@798017 b8457f37-d9ea-0310-8a92-e5e31aec5664
Modified the way the admin page alerts the current user because of a wrong GTM ID or wrong dataLayer variable name: removed JavaScript alert() on blur

git-svn-id: https://plugins.svn.wordpress.org/duracelltomi-google-tag-manager/trunk@798018 b8457f37-d9ea-0310-8a92-e5e31aec5664