alert messages are now changeable

git-svn-id: https://plugins.svn.wordpress.org/admin-user-messages/trunk@925326 b8457f37-d9ea-0310-8a92-e5e31aec5664
alert messages are now changeable

git-svn-id: https://plugins.svn.wordpress.org/admin-user-messages/trunk@925329 b8457f37-d9ea-0310-8a92-e5e31aec5664