Move conference description in conference show, instead of program partial.

app/views/conference/_program.html.haml

@@ -6,9 +6,6 @@
   %div.row
     %div.col-md-12
       %h1 Program
-      - unless @conference.description.blank?
-        %p
-          = @conference.description
       - if @conference.call_for_papers and @conference.call_for_papers.schedule_public
         %span You can check out our
         %span

app/views/conference/show.html.haml

@@ -1,5 +1,8 @@
 = content_for :brand do
   = link_to @conference.title, conference_url(@conference.short_title), class: 'navbar-brand'
+
+- unless @conference.description.blank?
+  %p= @conference.description
 %div#program
   = render 'program'
 %div#registration