Add call for booths in cfp section in conference splashpage(conferences#show),modified after the design changes

app/views/conferences/_call_for_booths.haml

@@ -0,0 +1,19 @@
+- cache [conference_id, call, '#splash#callforbooths'] do
+  .col-md-4.col-sm-4.text-center
+    %h2
+      Call for Booths
+    %p.lead
+      We are now accepting custom booth requests!
+    %p
+      Would you like to request a new booth?
+      The submission period for booth requests is open
+      %em
+        = date_string(call.start_date, call.end_date) + '.'
+      %b
+        You have
+        = pluralize(call.remaining_days, 'day')
+        left!
+    %p.cta-button
+      = link_to("Submit your request for booth",
+        new_conference_booth_path(conference_id),
+        class: 'btn btn-success btn-lg text-center')

app/views/conferences/_call_for_content.haml

@@ -5,12 +5,18 @@
 %section#call
   .container
     .row
-      - if one_call_open(call_for_events, call_for_tracks)
-        .col-md-3.col-sm-3.hidden-xs  
+      - if one_call_open(call_for_events, call_for_tracks, call_for_booths)
+        .col-md-4.col-sm-4.hidden-xs  
+      - if two_calls_open(call_for_events, call_for_tracks, call_for_booths)
+        .col-md-2.col-sm-2.hidden-xs  
       - if call_for_events.try(:open?)
         = render 'call_for_papers', conference_id: conference.short_title,
           call: call_for_events, event_types: event_types, tracks: tracks
-      .col-md-2.col-sm-2  
       - if call_for_tracks.try(:open?)
         = render 'call_for_tracks', conference_id: conference.short_title,
           call: call_for_tracks
+      - if call_for_booths.try(:open?)
+        = render 'call_for_booths', conference_id: conference.short_title,
+          call: call_for_booths
+      - if two_calls_open(call_for_events, call_for_tracks, call_for_booths)
+        .col-md-2.col-sm-2.hidden-xs  

app/views/conferences/_call_for_papers.haml

@@ -1,5 +1,5 @@
 - cache [conference_id, call, event_types, tracks, '#splash#callforpapers'] do
-  .col-md-5.col-sm-5.text-center
+  .col-md-4.col-sm-4.text-center
     %h2
       Call for Papers
     %p.lead

app/views/conferences/_call_for_tracks.haml

@@ -1,5 +1,5 @@
 - cache [conference_id, call, '#splash#callfortracks'] do
-  .col-md-5.col-sm-5.text-center
+  .col-md-4.col-sm-4.text-center
     %h2
       Call for Tracks
     %p.lead

app/views/conferences/show.html.haml

@@ -18,6 +18,7 @@
   - if @conference.splashpage.include_cfp
     = render 'call_for_content', conference: @conference,
       call_for_events: @call_for_events, call_for_tracks: @call_for_tracks,
+      call_for_booths: @call_for_booths,
       event_types: @event_types, tracks: @track_names
 
   - if @conference.splashpage.include_program