version 0.6b

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-mailchimp-plugin/trunk@1025466 b8457f37-d9ea-0310-8a92-e5e31aec5664
version 0.6c

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-mailchimp-plugin/trunk@1025469 b8457f37-d9ea-0310-8a92-e5e31aec5664