Hide "print labels" column on products list view if so configured.

tailbone/views/products.py

@@ -206,6 +206,8 @@ class ProductsGrid(SearchableAlchemyGridView):
             g.deletable = True
             g.delete_route_name = 'product.delete'
 
+        # Maybe add Print Label column.
+        if self.request.rattail_config.getboolean('tailbone', 'products.print_labels', default=True):
             q = Session.query(LabelProfile)
             if q.count():
                 def labels(row):