adding woocommerce-max-quantity by isabel104

git-svn-id: http://plugins.svn.wordpress.org/woocommerce-max-quantity/trunk@759671 b8457f37-d9ea-0310-8a92-e5e31aec5664
Adding first version

git-svn-id: http://plugins.svn.wordpress.org/woocommerce-max-quantity/trunk@760196 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of https://github.com/isabelc/WooCommerce-Max-Quantity