Changed default in DCAwareRoundRobinPolicy so it throws an exception when explicitly specified DC is invalid (JAVA-451).
Merge branch 'TheWeatherChannel-dcAwareFix' into 2.1
Add stress test for opening/closing sessions/clusters (JAVA-432)
Add sleep() so that TCP connections are released (JAVA-466)
Merge pull request #231 from pingtimeout/JAVA-432

Add stress test for opening/closing sessions (JAVA-432)
Test that synthetic fields are ignored by Mapper (JAVA-465)
Merge pull request #233 from pingtimeout/JAVA-465

Test that synthetic fields are ignored by Mapper (JAVA-465)