Show custom icons per feed

app/views/layers/show.html.haml

@@ -41,7 +41,11 @@
       %td= link_to 'Edit', edit_feed_path(s.feed), :class => "button"
       %td= link_to 'Delete', s, :confirm => "Delete #{s.feed.title}?", :method => :delete, :class => "button"
       %td= link_to 'Edit icon', edit_subscription_path(s), :class => "button"
-
+      %td
+        - unless s.icon_url.nil?
+          = image_tag s.icon_url
+        - else
+           
   %tr
     %td
     %td.right= @layer_posts