Splaspage: Add highlights. Fix cfp inclusion.

app/models/conference.rb

@@ -562,6 +562,14 @@ class Conference < ActiveRecord::Base
     User.with_role(:keynote_speaker, self)
   end
 
+  ##
+  #
+  # ====Returns
+  # * +Array+  ->  Events with attribute 'is_highlight'
+  def highlights
+    events.where(is_highlight: true)
+  end
+
   private
 
   after_create do

app/models/splashpage.rb

@@ -1,7 +1,7 @@
 class Splashpage < ActiveRecord::Base
   belongs_to :conference
   attr_accessible :public,
-                  :include_tracks, :include_program,
+                  :include_tracks, :include_program, :include_cfp,
                   :include_venue, :include_registrations,
                   :include_tickets, :include_lodgings,
                   :include_sponsors, :include_social_media