* The "Newest" tab of the forum is updated with new filter options.
* Which forums: All, Official, Community, My List
* Show: By threads, All posts
* The option for "Which forums" is saved in the user's preferences and set as
their default on future visits, similar to the Site Gallery "Whose photos"
option.
* So users can subscribe to their favorite forums and always get their latest
posts easily while filtering out the rest.
* Forum Moderators
* Add the ability to add and remove moderators for your forum.
* Users are notified when they are added as a moderator.
* Moderators can opt themselves out by unfollowing the forum.
* ForumMembership: add unique constraint on user_id,forum_id.
* Add "Browse" tab to the forums to view them all.
* Text search
* Show all, official, community, or "My List" forums.
* Add a Follow/Unfollow button into the header bar of forums to add it to
"My List"
* On the Categories page, a special "My List" category appears at the top
if the user follows categories, with their follows in alphabetical order.
* On the Categories & Browse pages: forums you follow will have a green
bookmark icon by their name.
Permissions:
* The forum owner is able to Delete comments by others, but not Edit.
Notes:
* Currently a max limit of 100 follow forums (no pagination yet).
