Change log for Mail::AuthenticationResults

1.20180518 2018-05-18 10:10:03+10:00 Australia/Melbourne
        - Consider CR properly when parsing an entry.

1.20180328 2018-03-28 21:35:34+11:00 Australia/Melbourne
        - Folding of headers rendered as string for
          the Mail::AuthenticationResults::Header object.

1.20180314 2018-03-14
        - Correctly stringify zero
        - Method to remove chindren from an instance

1.20180215 2018-02-15
        - Perl 5.8 compatability

1.20180211 2018-02-11
        - Test improvements
        - Coverage improvements
        - Stringify and validation improvements

1.20180113 2018-01-13
        - Added safe set methods
        - General improvements

1.20171230 2017-12-30
        - Improve test suite
        - Add search method
        - Improve parser

1.20171226 2017-12-26
        - First Release, Module for handing Authentication-Results headers.