Improve integration tests, add auto and iterative cluster bootstrap/destroy, smoke test
Ensure integration test cluster does not clash with default cm-ec2 example cluster, add status command
Merge pull request #27 from ggear/graham-patch-CDH-12449

CDH-12449 Improve whirr-cm integration tests
Ensure integration tests work with Enterprise license
Merge pull request #28 from ggear/graham-patch-CDH-12449

CDH-12449 Improve whirr-cm integration tests
Merge pull request #29 from ggear/graham-patch-CDH-12517

CDH-12517 Resolve whirr-cm issues with CM 4.6