Allow TriggerOnPortalUpdate to work also on derived classes: i.e a trigger defined for the class 'Ticket' will be called when a 'UserRequest' (derived from Ticket) will be updated from the portal.
Allow TriggerOnPortalUpdate to work also on derived classes: i.e a trigger defined for the class 'Ticket' will be called when a 'UserRequest' (derived from Ticket) will be updated from the portal.

git-svn-id: 8a2b0a969c74f87a9c14cf35f460fb9b394f82c6@1509 a333f486-631f-4898-b8df-5754b55c2be0

changi67/itop,changi67/itop,changi67/itop,changi67/itop