update now follows BaseIntMap spec and raise Not_found update_default has been optimised to only fold the map once
and not only the final ones
There should be no lose of performance, there were no reason not to use an accumulator as far as I can tell
…two set/map Usefull to explain why two sets are not equal.
…connect to a lost database server
…inks to absolute paths if a points to /b, remove_symlink "a" returns "/b" and not ".//b"
…slice (which corresponds to every single call case)