Daily digest v1.7 changes: Security update. The emoji field in the options page has been removed, you can add a emoji to the dailydigest_subject phrase.
Daily digest v1.6 changes: Fixed undefined variable condition.
Daily digest v1.5 changes: Fixed issue with empty result variable.
Daily digest v1.4 changes: Updated Subscribe / Unsubscribe page.
Daily digest v1.3 changes: Now properly bypasses accounts without an email address.
Daily digest v1.2 changes: Added unread to thread link.
Daily digest v1.1 changes: Options page has new feature called New posts.
