sys config upgrade

go/gopath/src/fohow.com/apps/controllers/pay_controller/after_pay_controller.go

@@ -15,6 +15,7 @@ import (
 	"fohow.com/apps/models/balance_model"
 	"fohow.com/apps/models/order_model"
 	"fohow.com/apps/models/pay_model"
+	"fohow.com/apps/models/sys_config"
 	"fohow.com/libs/wx_mp"
 	"github.com/astaxie/beego"
 	"strconv"