Add fallbacks for venue commercial

app/assets/stylesheets/osem-splash.css.scss

@@ -171,3 +171,18 @@
     }
   }
 }
+
+/* Venue icon styles */
+.icon-container {
+  position: relative;
+  height: 315px;
+  .icon-inner {
+    position:absolute;
+    top:50%;
+    left: 50%;
+    transform:translate(-50%,-50%);
+    .fa-university {
+      font-size: 10em;
+    }
+  }
+}

app/views/conference/_venue.html.haml

@@ -11,7 +11,15 @@
           .thumbnail
             .flexvideo{ id: "resource-content-#{@conference.venue.commercial.id}"}
               = render partial: 'shared/media_item', locals: { commercial: @conference.venue.commercial }
-    
+      - elsif @conference.venue.picture.present?
+        .col-md-5
+          .thumbnail
+            = image_tag @conference.venue.picture.url, alt: "Venue", size: "560x315"
+      - else
+        .col-md-5
+          .thumbnail.icon-container
+            .icon-inner
+              = fa_icon "university"
       .col-md-6
         %h2.text-center
           = "#{@conference.venue.city} / #{@conference.venue.country_name}"