version 1.5.9

git-svn-id: https://plugins.svn.wordpress.org/wangguard/trunk@748085 b8457f37-d9ea-0310-8a92-e5e31aec5664
tagging 1.5.9

git-svn-id: https://plugins.svn.wordpress.org/wangguard/trunk@748086 b8457f37-d9ea-0310-8a92-e5e31aec5664