Add prototype to silence warning (fixes #85281)

Thanks to Petr Pisar for pointing out the problem.

https://rt.cpan.org/Ticket/Display.html?id=85281
Stop using UNIVERSAL->import (fixes #66114)

Thanks to Nicholas Bamber (SILASMONK) for the patch
https://rt.cpan.org/Public/Bug/Display.html?id=66114
Switch to the fabulous Dist::Zilla (see dzil.org)
Remove end-of-line whitespace
Remove refs to LectroTest Home in docs
Remove signature test
Turn on Dist::Zilla support for CPAN releases