Add backchannel logout, per application logout.

config/initializers/version.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module Clinch
+  VERSION = "0.6.0"
+end

config/routes.rb

@@ -49,6 +49,7 @@ Rails.application.routes.draw do
   end
   resource :active_sessions, only: [:show] do
     member do
+      delete :logout_from_app
       delete :revoke_consent
       delete :revoke_all_consents
     end