Small upgrade process update.

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-incremental-product-quantities/trunk@915653 b8457f37-d9ea-0310-8a92-e5e31aec5664
Small upgrade process update.

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-incremental-product-quantities/trunk@915655 b8457f37-d9ea-0310-8a92-e5e31aec5664