v0.1.1 2018-06-13

* Begin SocialAPI unofficial implementation report.
* Improved HTTP header detection for ActivityPub requests.
* Activities added to outboxes are now Set (in addition to the outbox itself).
* Fixed panic where the 'bcc' and 'bto' properties were improperly guarded.
* Fixed authn/authz shadowing when serving ActivityStream objects, causing only
      HTTP Signatures to be enforced.
* Under certain circumstances, IRIs will be fetched when an Add Activity is
      received. This behavior is a stepping stone towards a comprehensive
      solution in a future patch.
* SocialAPI Undo Activity has actors enforced the same way as the FederatedAPI.
* IRI normalization: Objects, Activities, and Links will no longer be duplicated
      when added to Collection types. Instead, IRIs are added.
* Serving ActivityStream objects will now remove the 'bcc' and 'bto' properties.
* Serving a Tombstone ActivityStream response now uses the HTTP 410 Gone status
      code.
* The 'vocab' and 'streams' subpackages now generate code to multiple files
      instead of a single large one.
* The 'deliverer' subpackage now has test coverage.

v0.1.0 2018-05-30

* Initial release of the 'deliverer' subpackage.
* Initial release of the 'pub' subpackage.
* Initial release of the 'streams' subpackage.
* Initial release of the 'tools' subpackage.
* Initial release of the 'vocab' subpackage.
* Support for ActivityStream static types in Go.
* Support for ActivityStream serialization and deserialization.
* Support for ActivityPub POST and GET to actor inboxes.
* Support for ActivityPub POST and GET to actor outboxes.
* Support for SocialAPI, FederatedAPI, or both for inbox and outboxes.
* Support for ActivityPub GET to fetch ActivityStreams.
* Support for HTTP Signature verification.
* Support for basic SocialAPI Activity behaviors.
* Support for basic FederatedAPI Activity behaviors.
* Support for Application-customized authn/authz behaviors.
* Support for Tombstone for Delete Activities.
* Test 'vocab' against examples in the spec.
* Test 'streams' against the test repository.
* Test 'pub' with over >100 end-to-end black box tests.