Merge branch 'master' into 2903-remove-pi-active-and-success

diff --cc services/api/app/controllers/arvados/v1/pipeline_instances_controller.rb
index 614af685f93d49ae7611f81b077205a3ed7f798c,9781caf7e8183f618d33971335ed4d6e38a23ab3..67090e68f23d02395acbc931285a360c6c9951c1
--- 1/services/api/app/controllers/arvados/v1/pipeline_instances_controller.rb
--- 2/services/api/app/controllers/arvados/v1/pipeline_instances_controller.rb
+++ b/services/api/app/controllers/arvados/v1/pipeline_instances_controller.rb
@@@ -1,5 -1,5 +1,6 @@@
  class Arvados::V1::PipelineInstancesController < ApplicationController
+   accept_attribute_as_json :components_summary, Hash
    accept_attribute_as_json :components, Hash
    accept_attribute_as_json :properties, Hash
 +  accept_attribute_as_json :components_summary, Hash
  end