Ticket 48921 - Adding replication and reliability tests
    
    Description:  Add two replication stress tests, one with just 4 masters, and
                  the other with 4 masters, 2 hubs, and 4 consumers.
    
                  Add a connection stress test (for nunc-stans)
    
                  Also made some small changes to the create_test.py script
    
    https://fedorahosted.org/389/ticket/48921
    
    Reviewed by: ?