Changed the reconnection logic to reduce the flood of reconnects. Also fixed incorrect keyspace on CreateSession.
Added code to debounce requests to fillPool when calls are in a tight
loop. Cleaned up code that was commented out in the first commit.
Adjusted error message in TestInvalidKeypsace test case.
Merge pull request #149 from phillipCouto/cleaner_reconnect

Changed the reconnection logic to reduce the flood of reconnects.