Prepare debian changelog for 4.0-beta2
Prepare debian changelog for 4.0-beta2

krummas/cassandra,thelastpickle/cassandra,bdeggleston/cassandra,jrwest/cassandra,szhou1234/cassandra,pauloricardomg/cassandra,szhou1234/cassandra,thelastpickle/cassandra,tjake/cassandra,beobal/cassandra,blerer/cassandra,tjake/cassandra,pauloricardomg/cassandra,thelastpickle/cassandra,pauloricardomg/cassandra,pauloricardomg/cassandra,krummas/cassandra,adejanovski/cassandra,michaelsembwever/cassandra,driftx/cassandra,beobal/cassandra,tjake/cassandra,apache/cassandra,belliottsmith/cassandra,blerer/cassandra,jrwest/cassandra,belliottsmith/cassandra,mshuler/cassandra,mike-tr-adamson/cassandra,bdeggleston/cassandra,szhou1234/cassandra,adelapena/cassandra,driftx/cassandra,blambov/cassandra,mike-tr-adamson/cassandra,blerer/cassandra,michaelsembwever/cassandra,krummas/cassandra,mike-tr-adamson/cassandra,beobal/cassandra,jrwest/cassandra,mshuler/cassandra,szhou1234/cassandra,blambov/cassandra,adejanovski/cassandra,mshuler/cassandra,blerer/cassandra,bdeggleston/cassandra,apache/cassandra,tjake/cassandra,blambov/cassandra,adelapena/cassandra,apache/cassandra,driftx/cassandra,blambov/cassandra,mike-tr-adamson/cassandra,bdeggleston/cassandra,beobal/cassandra,michaelsembwever/cassandra,thelastpickle/cassandra,belliottsmith/cassandra,michaelsembwever/cassandra,adelapena/cassandra,driftx/cassandra,krummas/cassandra,apache/cassandra,instaclustr/cassandra,mshuler/cassandra,belliottsmith/cassandra,instaclustr/cassandra,jrwest/cassandra,adelapena/cassandra,instaclustr/cassandra,instaclustr/cassandra,adejanovski/cassandra