Getting ready for 5.0.1

git-svn-id: https://plugins.svn.wordpress.org/breadcrumb-navxt/trunk@830982 b8457f37-d9ea-0310-8a92-e5e31aec5664
missed a version tag

git-svn-id: https://plugins.svn.wordpress.org/breadcrumb-navxt/trunk@830988 b8457f37-d9ea-0310-8a92-e5e31aec5664
And a few more version strings

git-svn-id: https://plugins.svn.wordpress.org/breadcrumb-navxt/trunk@830991 b8457f37-d9ea-0310-8a92-e5e31aec5664
Tested up to WP 3.8.0

git-svn-id: https://plugins.svn.wordpress.org/breadcrumb-navxt/trunk@830994 b8457f37-d9ea-0310-8a92-e5e31aec5664