Fix RS storage-first auth work in dev, remove token

See https://github.com/remotestorage/remotestorage.js/issues/900

app/controllers/services/rs_auths_controller.rb

@@ -23,7 +23,11 @@ class Services::RsAuthsController < Services::BaseController
   end
 
   def launch_app
-    launch_url = "#{@auth.launch_url}#remotestorage=#{current_user.address}&access_token=#{@auth.token}"
+    user_address = Rails.env.development? ?
+      "#{current_user.cn}@localhost:3000" :
+      current_user.address
+
+    launch_url = "#{@auth.launch_url}#remotestorage=#{user_address}"
 
     redirect_to launch_url, allow_other_host: true
   end