Changes for version 0.03
- Remove 'not' from overloads. Apparently achieved nothing anyway, and 5.16 warns that it's invalid.
- Add MPFI_VERSION_MAJOR, MPFI_VERSION_MAJOR, MPFI_VERSION_PATCHLEVEL and MPFI_VERSION_STRING (mpfi-1.5.1 and later only).
- In aab_basic.t, check that library and header versions match (mpfi-1.5.1 and later only).
- Math::MPFI - perl interface to the MPFI (interval arithmetic) library.