version 2.6.8

git-svn-id: https://plugins.svn.wordpress.org/admin-menu-tree-page-view/trunk@845815 b8457f37-d9ea-0310-8a92-e5e31aec5664
fix link in readme

git-svn-id: https://plugins.svn.wordpress.org/admin-menu-tree-page-view/trunk@845819 b8457f37-d9ea-0310-8a92-e5e31aec5664