HBASE-19390 Temporary downgrade to Jetty 9.3 to match hadoop
HBASE-19390 Temporary downgrade to Jetty 9.3 to match hadoop

(cherry picked from commit 680a534acd2fee1f50ddc3eb0d14c27d30f35679)

HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase,HubSpot/hbase