FEATURE: First stab at groups page with member list

app/serializers/group_post_serializer.rb

@@ -0,0 +1,15 @@
+class GroupPostSerializer < ApplicationSerializer
+  attributes :id,
+             :cooked,
+             :created_at,
+             :title,
+             :url
+
+  has_one :user, serializer: BasicUserSerializer, embed: :objects
+
+  def title
+    object.topic.title
+  end
+
+end
+