Fix hide reception cart

- add property user_cart_on
- add property product_sale_default_focus
- add property ticket_create-price_editable
- add discount product/ticket enabled

frontend/controllers/TicketController.php

@@ -104,7 +104,7 @@ class TicketController extends FrontendController
     	
         $model = new  TicketCreate();
 
-        $discounts = Discount::read();
+        $discounts = Discount::readTicketDiscounts();
         
         $ticketTypes = TicketType::read(null, null);