* Unsubscribe on notifications list
* Unread: mark all as read, unsubscribe
* NestedModelChoiceField for multiple choice (search)
* 'User has leave or has joined the conversation' comment on private topics, dont send notification.
* Ocultar quote anidado (ej: max tres niveles, y ocultar el tercero con js [...])
* Diff entre comentarios en historial (js)
* Agregar contadores (comments, topics) para categoria
* Agregar contadores (likes, topics, comments) para usuario
* Panel de administracion: news letter,
* Email notificacion digest/resume (once a day or so),
  add preference for sending on every notif, unsubscribe,
  translate.activate the user lang before sending or send bulk in english (?)
* Test middlewares
* Test managers
* Tests views for login required
* Emailer app (email queue)
* Remove pagination and prefetchers logic from templates
* Lazy load for videos (youtube...)
* Merge markdown image,audio,video,youtube,vimeo preprocessors (so lines get iterated one time)
* Categories list
* Topic favorite
* Admin: topic list for removed category
* Private topic: paginate participants
* Moderation section: flags, topics
* User groups (permissions)
* >> add @username on reply
* >> allow mods to create topics on closed categories
* >> order profile topics by creation date


Template
* profile, add rank mod/admin
* admin: flag detail delete comment, detail add topic title
* admin: add nav to detail templates
* Notifications: show all/unread link
* local store comment publish/update


Readme
* add note about translations and fuzziness
* update: rebuild_index (search) command