actual handling of WUs in trashbin: WUs in trashbin are unzipped in /tmp, and retrieval of results is done from there.
actual handling of WUs in trashbin: WUs in trashbin are unzipped in /tmp, and retrieval of results is done from there.

At the same time:
- fix for dealing with trashed WUs: there is a suffix in their name;
- counting of ready/ok/duplicate/failed results is done at each batch of
  results treated, and at the end;

SixTrack/SixDesk,SixTrack/SixDesk,SixTrack/SixDesk,SixTrack/SixDesk