Temporarily ignoring test until SERVER-16274 is resolved, as this test causes a crash in a 2.8 replica set
Cluster now extends Closeable
MongoClient now extends Closeable

 JAVA-1501
Using waitQueueSize atomic integer properly in BaseCluster
Added Server.getConnectionAsync and supporting implementation in DefaultServer and DefaultConnectionPool
The connection pool implements it with a single threaded executor service and handles wait queue size and timeout enforcement

  JAVA-1200
DefaultConnectionPool.getAsync now opens each connection asynchronously.

 JAVA-1200
InternalStreamConnectionInitializer.openAsync is now truly asynchronous

 JAVA-1385
Simplified CompoundAuthenticator

 JAVA-1200
Changed ConnectionId.equals contract to include the server value.

 JAVA-1200