add event_type keynote

app/models/conference.rb

@@ -566,8 +566,8 @@ class Conference < ActiveRecord::Base
     email_settings.updated_conference_registration_dates_template
   end
 
-  def keynote_speakers
-    User.with_role(:keynote_speaker, self)
+  def keynotes
+    events.where(state: 'confirmed').select { |e| e.event_type.title == 'Keynote'}
   end
 
   ##

app/views/conference/_program.html.haml

@@ -24,9 +24,9 @@
           = link_to(conference_schedule_path(@conference.short_title), class: 'btn btn-default btn-lg') do
             Full Schedule
 
-
   %h3.text-center
     Don't miss out!
+  %br
   - if @conference.highlights.any?
     .row
       .col-md-12