The following bugs are resolved:
* A blocked user comments on a Photo that you have also commented on
(are subscribed to), and you would be notified about their comment.
* A blocked user comments on a Forum Thread that you are subscribed to,
and you would be notified about their post.
* Comments by blocked users (on photos and forum threads) were visible
to you after you have blocked them.
* Add ability to (un)subscribe from comment threads on Forums and Photos.
* Creating a forum post, replying to a post or adding a comment to a photo
automatically subscribes you to be notified when somebody else adds a
comment to the thing later.
* At the top of each comment thread is a link to disable or re-enable your
subscription. You can join a subscription without even needing to comment.
If you click to disable notifications, they stay disabled even if you
add another comment later.
* Add permalink URL for photos to view their comment threads.
* Commenters can Edit or Delete their own comments.
* Photo owners can Delete any comment on it.
* Update Privacy Policy
