Rename 'ConferenceController' to 'ConferencesController', and 'ProposalController' to 'ProposalsController'

app/views/conferences/_lodging.html.haml

@@ -0,0 +1,29 @@
+.container
+  .row
+    .col-md-12.text-center
+      %h2
+        Where to stay
+        - if @conference.venue
+          in
+          = @conference.venue.city
+      %p.lead
+        We recommend these affordable lodging accommodations for your visit.
+  - @conference.lodgings.each_slice(3) do |slice|
+    .row.row-centered
+      - slice.each do |lodging|
+        .col-md-4.col-sm-4.ticket.col-centered.col-top
+          .thumbnail
+            - unless lodging.picture?
+              %p.text-center
+                %i.fa.fa-home.fa-5x
+            - else
+              -if lodging.website_link.present?
+                = link_to(lodging.website_link, class: 'thumbnail') do
+                  = image_tag lodging.picture.large.url, class: 'img-responsive img-lodging'
+              - else
+                = image_tag lodging.picture.large.url, class: 'img-responsive img-lodging'
+            .caption
+              %h3.text-center
+                = lodging.name
+              -if lodging.description.present?
+                = markdown(lodging.description)