Version 1.0.4

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-advanced-free-shipping/trunk@1017861 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-advanced-free-shipping/trunk@1017862 b8457f37-d9ea-0310-8a92-e5e31aec5664