NOTE: This method is called only if you
implemented IwodAppUpdateNotify
interface in your application, and wodAppUp.Notification
property has received reference to instance of your
implementation.
This notification method is called if wodAppUpdate
detected "leftover" files from previous run - and
they are sufficient to replace and update your application
without performing new check and new download.
From within this notification method you can all
Update
method to immediately update your application, or you can
call Clear method
to delete those files and start over.