GRN2-155: Begin preparing for removal of Twitter accounts (#615)

* Add twitter deprecation message

* Fix rspec test

* Extract room switch to its own method

* update method name

config/environments/test.rb

@@ -49,4 +49,6 @@ Rails.application.configure do
   # Use standalone BigBlueButton server.
   config.bigbluebutton_endpoint = config.bigbluebutton_endpoint_default
   config.bigbluebutton_secret = config.bigbluebutton_secret_default
+
+  config.loadbalanced_configuration = false
 end