IMPORT/EXPORT Admin tasks don't show any info on admin dashboard

The Admin DASHBOARD show all admin tasks EXCEPT the IMPORT/EXPORT ones that don't report any data. As a deferred tasks, any import or export can be at least these states: - Initial (the task has been created by admin but not started yet). - started (the task has started to be executed), - ended OK (the task ended without error). - aborted (the task ended due to an error, without performing the import or export wanted activity). Add to IMPORT/EXPORT the capacity to report about any state change onto the DASHBOARD, in order to the admins will be able to know the state of any solicited process, including any accounting or completion detail data of the ENDED state, and in case of ABORTED, any log or data that could be useful to the admin to analyze the reason of the process abort. Any application that is able to perform deferred processes in batch mode at user request, have this support functions.