[INCOMPATIBLE CHANGE]
- Exceptions are now Path::Tiny::Error objects, not autodie exceptions;
this removes the last dependency on autodie, which allows us to
support Perls as far back as v5.8.1
[FIXED]
- BSD/NFS flock fix was not backwards compatible before v5.14. This
fixes it harder.
[PREREQS]
dropped autodie
lowered ExtUtils::MakeMaker configure_requires version to 6.17