update to 0.5

git-svn-id: https://plugins.svn.wordpress.org/nav-query/trunk@955667 b8457f37-d9ea-0310-8a92-e5e31aec5664
update to 0.5

git-svn-id: https://plugins.svn.wordpress.org/nav-query/trunk@955668 b8457f37-d9ea-0310-8a92-e5e31aec5664