v0.0.20		Tue  2 Feb 08:17:07 GMT 2021
	* Add "pretty" adverb to pass to JSON::Fast (from Vadim Belman.)
	* Switch to GH actions
	* A little spring cleans
v0.0.19		Sun 27 Sep 18:21:50 BST 2020
	* Fix for method name marshaller with undefined value
    * Fix for anonymous constraint on attribute
v0.0.18     Thu 18 Apr 14:20:37 BST 2019
    * Pass on the :sorted-keys to JSON::Fast::to-json
v0.0.17		Mon  4 Mar 19:42:48 GMT 2019
	* Remove :api from class module definition to appease ancient rakudo
v0.0.16     Thu 17 Jan 09:36:04 GMT 2019
    * Spring Clean and upload to CPAN
v0.0.15     Mon  5 Nov 13:55:34 GMT 2018
    * Add a json-skip trait to inhibit marshalling of attribute
v0.0.14		Thu 28 Dec 14:52:18 GMT 2017
	* Fix for marshalling of class and aggregate type objects
v0.0.13		Sat Jul 22 09:26:54 2017 +0100 
	* Fix version matching from @ugexe in #6
v0.0.12		Sat Apr 22 15:32:30 2017 +0100 
	* Allow skipping of empty aggregate attributes
v0.0.11		Wed Dec 21 15:20:45 2016 +0000 
	* Fix custom marshaller on local over-ride of the attribute in child
v0.0.10		Fri May 27 10:41:11 2016 +0100 
	* Make JSON::Fast an explicit test dependency as the builtin parser is deprecated
v0.0.9		Sun May 1 17:41:14 2016 +0100 
	* Remove possible warning from custom marshaller
v0.0.8		Tue Apr 19 14:49:05 2016 +0100 
	* Switch to using JSON::Fast
v0.0.7		Fri Apr 1 20:59:12 2016 +0100 
	* Allow marshalling of positional, associative objects.
v0.0.6		Thu Jan 28 10:35:09 2016 +0000 
	* Add skipping the serialisation of undefined attributes
