Log Message:
Update to 1.20181021

Upstream changes:
1.20181021 2018-10-21 12:09:32-07:00 America/Los_Angeles
    - autogenerate META.json file (Mohammad S Anwar, GH PR #7)
    - remove Module::Build build dependency to make installation easier

1.20180928 2018-09-27 18:29:25-07:00 America/Los_Angeles
    - skip tests for Perls without arraybase (Dagfinn Ilmari Mannsåker, GH #10)