Merge pull request #15 from Pardot/bigdata-happyland

Bigdata happyland
Merge pull request #16 from Pardot/bigdata-happyland

[PDT-4755] Fix integer as a string parsed to boolean
Merge pull request #17 from Pardot/bigdata-happyland

Add move sharding tests to new test class, only build the keyspace once + Change the way deletes work in update
[PDT-5181] Add metrics for prepared and executed statements
[PDT-5181] Fix meter naming