Tax rate in item map

db/mappings/item.js

@@ -21,7 +21,8 @@ module.exports = [{
     'urlslug',
     'price_cents',
     'published',
-    'number_in_stock'
+    'number_in_stock',
+    'tax_rate'
   ],
   collections: [
     {name: 'images', mapId: 'imageMap', columnPrefix: 'image_'}