Revision history for Perl extension slots

1.05 2018-02-25
    - bumping the version, ignore this.

0.03 2018-02-25
    - first release with proper permissions

0.02 2018-01-31
    - Switch the internals to just use the MOP
      APIs for everything, silly not to.

0.01 2017-10-16
    - initial release