* added nofollow to subscription management page, thanks to Monika, https://wordpress.org/support/topic/increase-of-error-404-comment-subscriptions
* fixed duplicated MIME version information in e-mails, thanks to jaegerschnitzel, https://wordpress.org/support/topic/invalid-header-17

git-svn-id: https://plugins.svn.wordpress.org/subscribe-to-double-opt-in-comments/trunk@1006060 b8457f37-d9ea-0310-8a92-e5e31aec5664