Release v0.29 - This Looks Serious (TLS) (#1765)

* Add release notes

* Fix failing integration test

* Run FormatCode build task to tidy up whitespace

* Remove "UnkownUser" from release notes contributors

Octokit/Models/Response/ActivityPayloads/StatusEventPayload.cs

@@ -67,6 +67,5 @@ namespace Octokit
         /// The branches involved.
         /// </summary>
         public IReadOnlyList<Branch> Branches { get; protected set; }
-
     }
 }