* #62 - Added a Force copy flag in case the hadoop cluster is version 2*.
* #67 - Added retries while updating the job to status running after successful launch.
* Changed scripts to create a sample cluster with version 2.4.0.
Added num retries as property and changed the hardcoded version prefix as a constant.
Merge pull request #68 from Netflix/issues/62_67

* #62 - Added a Force copy flag in case the hadoop cluster is version 2*...