GUACAMOLE-423: Remove version specificity from guacamole-docker README reference to database auth SQL scripts.
GUACAMOLE-423: Remove version specificity from guacamole-docker README reference to database auth SQL scripts.

necouchman/incubator-guacamole-client,mike-jumper/incubator-guacamole-client,necouchman/incubator-guacamole-client,jmuehlner/incubator-guacamole-client,mike-jumper/incubator-guacamole-client,necouchman/incubator-guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,mike-jumper/incubator-guacamole-client,jmuehlner/incubator-guacamole-client,necouchman/incubator-guacamole-client,glyptodon/guacamole-client,glyptodon/guacamole-client,jmuehlner/incubator-guacamole-client,mike-jumper/incubator-guacamole-client,jmuehlner/incubator-guacamole-client