Commit Version 1.4.0

git-svn-id: https://plugins.svn.wordpress.org/gift-cards-for-woocommerce/trunk@929830 b8457f37-d9ea-0310-8a92-e5e31aec5664
Delete extra files

git-svn-id: https://plugins.svn.wordpress.org/gift-cards-for-woocommerce/trunk@929833 b8457f37-d9ea-0310-8a92-e5e31aec5664
Delete more files

git-svn-id: https://plugins.svn.wordpress.org/gift-cards-for-woocommerce/trunk@929834 b8457f37-d9ea-0310-8a92-e5e31aec5664