RoundRobinPolicy, DCAwareRoundRobinPolicy  can be shared beetween Sessions (fix)
RetryLoadBalancingPolicy.cs decorator instead of RoundRobinPolicyWithReconnectionRetries.cs
Two stresstests based on file discussed on https://groups.google.com/a/lists.datastax.com/forum/#!topic/csharp-driver-user/5kxFsoOtzgg