Add tooltip for article prices

app/views/deliveries/_form.html.haml

@@ -61,6 +61,8 @@
           return true;
         }
       });
+      
+      enablePriceTooltips();
     });
     
     function mark_article_for_delivery(stock_article_id) {
@@ -78,6 +80,14 @@
       return ( 0 == $('#stock_change_stock_article_' + stock_article_id).length );
     }
 
+    function enablePriceTooltips(context) {
+      $('[data-toggle~="tooltip"]', context).tooltip({
+        animation: false,
+        html: true,
+        placement: 'left'
+      });
+    }
+
 = simple_form_for [@supplier, @delivery], validate: true do |f|
   = f.error_notification
   = base_errors f.object