added comunity logos to notifications

Author: Oaphi

app/assets/stylesheets/notifications.scss

@@ -34,6 +34,10 @@
     }
   }
 
+  .notification--icon {
+    max-height: 1em;
+  }
+
   .notification--timestamp {
     line-break: strict;
   }

app/views/notifications/_notification.html.erb

@@ -8,6 +8,11 @@
 <div class="notification">
   <div class="notification-content">
     <div class="form-caption">
+      <% if SiteSetting['SiteLogoPath'].present? %>
+        <img class="notification--icon"
+             src="<%= SiteSetting['SiteLogoPath'] %>"
+             alt="<% notification.community_name %> logo" />
+      <% end %>
       <%= notification.community_name %> &middot; <%= notification.rendered_timestamp %>
     </div>
     <a href="<%= notification.link %>"><%= render_pings_text(notification.content) %></a>