Revert "Bump jetty-server from 8.1.16.v20140903 to 9.4.17.v20190418 in /bindings/jabbot-spark-binding"
Revert "Bump jetty-server from 8.1.16.v20140903 to 9.4.17.v20190418 in /bindings/jabbot-spark-binding"

midoricorp/jabbot,vmorsiani/jabbot,midoricorp/jabbot,midoricorp/jabbot,vmorsiani/jabbot,vmorsiani/jabbot