FIX: handle multi-line popup content

Author: edlinklater

templates/EdgarIndustries/ElementalMap/Block/MapBlock.ss

@@ -15,7 +15,7 @@
             var map{$Up.ID}marker{$ID} = L.marker([{$Latitude}, {$Longitude}]).addTo(map{$Up.ID});
 
             <% if $PopupContent %>
-                map{$Up.ID}marker{$ID}.bindPopup('{$PopupContent}');
+                map{$Up.ID}marker{$ID}.bindPopup(`{$PopupContent}`);
             <% end_if %>
         <% end_loop %>
     <% end_if %>