Now we can compare dates
Now TPs contains their UE
Fix : Clear before before fetch in get_TP_list fun

To avoid parsing obsolete data, we need to clear the buffer containing
the page before each call to fetch.
In fact, it should be factorised in fetch
Now provide --sorted argument

List every TP from all UE found, sorted by time.
Still experimental, have to check date comparaison
Fixed date timestamp function