Updated for WooCommerce 2.1.2

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-thumbnail-input-quantities/trunk@859080 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated for WooCommerce 2.1.2 *small fix.

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-thumbnail-input-quantities/trunk@859084 b8457f37-d9ea-0310-8a92-e5e31aec5664