GUAC-1164: Do not load display update channel unless needed.
GUAC-1164: Do not load display update channel unless needed.

mike-jumper/incubator-guacamole-server,flangelo/guacamole-server,mike-jumper/incubator-guacamole-server,apache/guacamole-server,mike-jumper/incubator-guacamole-server,flangelo/guacamole-server,glyptodon/guacamole-server,flangelo/guacamole-server,glyptodon/guacamole-server,apache/guacamole-server,glyptodon/guacamole-server,mike-jumper/incubator-guacamole-server,apache/guacamole-server,flangelo/guacamole-server