update to new wordpress version

git-svn-id: https://plugins.svn.wordpress.org/free-counter/trunk@849144 b8457f37-d9ea-0310-8a92-e5e31aec5664
update to new WP version

git-svn-id: https://plugins.svn.wordpress.org/free-counter/trunk@849147 b8457f37-d9ea-0310-8a92-e5e31aec5664