Fixed spacing

git-svn-id: https://plugins.svn.wordpress.org/easy-digital-downloads-hide-button-prices/trunk@862018 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix spacing

git-svn-id: https://plugins.svn.wordpress.org/easy-digital-downloads-hide-button-prices/trunk@862027 b8457f37-d9ea-0310-8a92-e5e31aec5664
Rewrote activation function

git-svn-id: https://plugins.svn.wordpress.org/easy-digital-downloads-hide-button-prices/trunk@863869 b8457f37-d9ea-0310-8a92-e5e31aec5664