2.58 bug fix release

This should fix the following RT bugs:
https://rt.cpan.org/Ticket/Display.html?id=77548
https://rt.cpan.org/Ticket/Display.html?id=40261
https://rt.cpan.org/Ticket/Display.html?id=40216

These were affecting the test suite and preventing install with
later versions ( > 6 ) of libwww.  Some things that have been
deprecated are actually removed, as they are incompatible with
the newer version of libwww.