GUACAMOLE-549: Merge update to latest version of webjar-servlet-2.x
GUACAMOLE-549: Merge update to latest version of webjar-servlet-2.x

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