Remove es6-collections & bump restbase-mod-table-cassandra dependency
Remove es6-collections & bump restbase-mod-table-cassandra dependency

milimetric/restbase,wikimedia/restbase,d00rman/restbase,Pchelolo/restbase,wikimedia/hyperswitch,eevans/restbase,gwicke/restbase,gwicke/restbase,Krenair/restbase,d00rman/restbase,inverno/restbase,wikimedia/mediawiki-services-restbase,wikimedia/mediawiki-services-restbase,inverno/restbase,cscott/restbase,physikerwelt/restbase,milimetric/restbase,Pchelolo/restbase,wikimedia/restbase,Krenair/restbase,eevans/restbase,cscott/restbase,physikerwelt/restbase