Update plugin version

git-svn-id: https://plugins.svn.wordpress.org/addthis/trunk@1015173 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update plugin version

git-svn-id: https://plugins.svn.wordpress.org/addthis/trunk@1015174 b8457f37-d9ea-0310-8a92-e5e31aec5664