Events: kickstart shared scoreboard

spec/factories/events.rb

@@ -6,6 +6,7 @@
 #  lang              :string           default("en")
 #  name              :string
 #  shared_scoreboard :boolean
+#  slug              :string
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
 #  user_id           :integer          not null