Set tags on packages for fancy dependency chaining.
Add some more tests (similar to the README.md).
Merge branch 'feature/repo_dependencies' into develop
Switch to deploying CDH via parcels instead of RPMs.

Cloudera's future is in deploying CDH and other related software via
their custom parcel format and not via RPM or DEB.  The CM software must
still be deployed via RPM or DEB.
Update README to cover the change in parcel support.
Merge branch 'feature/default_parcels' into develop