corrects travis build to reference newer tablesaw version (#598)
corrects travis build to reference newer tablesaw version (#598)


kairosdb/kairosdb,kairosdb/kairosdb,kairosdb/kairosdb,ppbizapps/kairosdb,ppbizapps/kairosdb,kairosdb/kairosdb,ppbizapps/kairosdb,ppbizapps/kairosdb,ppbizapps/kairosdb,kairosdb/kairosdb,kairosdb/kairosdb