#62 Delegate in notification

[GIJOE]

kernel/notification calls the delegate like:

$this->mTrigger->call($category, $event, $item_id, $extra_tags, new XCube_Ref($module), $user_list, $omit_user_id, $not_config, new XCube_Ref($force_return));

It is hard to use in the preloads.

In my preload, I want to add $extra_tags, to add/delete $user_list, to add/delete $omit_user_id.

Please add a new delegate all parameters are passed by reference.