Merge pull request #373 from amatsuda/ac_params_in_proposal_data

proposals.proposal_data may include serialized AC::Parameters as well

Author: amatsuda

config/application.rb

@@ -27,6 +27,6 @@ class Application < Rails::Application
 
     config.active_job.queue_adapter = :sidekiq
     config.active_record.yaml_column_permitted_classes =
-      [Symbol, Hash, Array, ActiveSupport::HashWithIndifferentAccess]
+      [Symbol, Hash, Array, ActiveSupport::HashWithIndifferentAccess, ActionController::Parameters]
   end
 end