Big commit:

- Support for a popup that shows similar topics
- Cleaned up a lot of Javascript
- Cleaned up use of Promises

app/serializers/basic_topic_serializer.rb

@@ -1,58 +1,9 @@
 require_dependency 'age_words'
 
+# The most basic attributes of a topic that we need to create a link for it.
 class BasicTopicSerializer < ApplicationSerializer
   include ActionView::Helpers
 
-  attributes :id,
-             :title,
-             :fancy_title,
-             :reply_count,
-             :posts_count,
-             :highest_post_number,
-             :image_url,
-             :created_at,
-             :last_posted_at,
-             :age,
-             :unseen,
-             :last_read_post_number,
-             :unread,
-             :new_posts
-
-  def age
-    AgeWords.age_words(Time.now - (object.created_at || Time.now))
-  end
-
-  def seen
-    object.user_data.present?
-  end
-
-  def unseen
-    return false if scope.blank?
-    return false if scope.user.blank?
-    return false if object.user_data.present?
-    return false if object.created_at < scope.user.treat_as_new_topic_start_date
-    true
-  end
-
-  def last_read_post_number
-    object.user_data.last_read_post_number
-  end
-  alias :include_last_read_post_number? :seen
-
-  def unread
-    unread_helper.unread_posts
-  end
-  alias :include_unread? :seen
-
-  def new_posts
-    unread_helper.new_posts
-  end
-  alias :include_new_posts? :seen
-
-  protected
-
-    def unread_helper
-      @unread_helper ||= Unread.new(object, object.user_data)
-    end
+  attributes :id, :fancy_title, :slug
 
 end