updateing to version 1.6

git-svn-id: https://plugins.svn.wordpress.org/wolfnet-idx-for-wordpress/trunk@972601 b8457f37-d9ea-0310-8a92-e5e31aec5664
updateing to version 1.6

git-svn-id: https://plugins.svn.wordpress.org/wolfnet-idx-for-wordpress/trunk@972609 b8457f37-d9ea-0310-8a92-e5e31aec5664