Add 'discontinued' flag to product view

Also, don't render product description as link if it's empty

tailbone/views/products.py

@@ -82,7 +82,7 @@ class DescriptionFieldRenderer(fa.TextFieldRenderer):
         description = self.raw_value
         if description is None:
             return ''
-        if kwargs.get('link'):
+        if kwargs.get('link') and description:
             product = self.field.parent.model
             description = tags.link_to(description, kwargs['link'](product))
         return description
@@ -314,6 +314,7 @@ class ProductsView(MasterView):
                 fs.not_for_sale,
                 fs.ingredients,
                 fs.notes,
+                fs.discontinued,
                 fs.deleted,
                 fs.last_sold,
             ])