Change log for Mail::AuthenticationResults

2.20210112 2021-01-12 22:10:28+00:00 UTC
  - Switch to a purely numeric version string

1.20200824.1 2020-08-24 01:03:58+00:00 UTC
  - Fix some POD formatting

1.20200331.1 2020-03-31 03:31:13+00:00 UTC
  - Treat an undefined value as emptystring in search

1.20200108 2020-01-08 03:38:09+00:00 UTC
  - Added as_json method to return structured JSON
    version of an instance.
  - Properly parse strings beginning with a .

1.20180923 2018-09-23 13:39:01+10:00 Australia/Melbourne
  - Added a 'has' search property to allow searching
    for results whose children match a given search.
  - Add a header 'isa' type to search for top level
    header entries within a group.
  - Add an 'authserv_id' search type to search for
    headers from a given authserv-id within a group.

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.