version 1.0.4

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-shipping-gateway-per-product/trunk@790427 b8457f37-d9ea-0310-8a92-e5e31aec5664
1.0.4

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-shipping-gateway-per-product/trunk@790440 b8457f37-d9ea-0310-8a92-e5e31aec5664