allow creation of data directory
Merge pull request #68 from jlambert121/datadir

allow creation of data directory
Fail early when package version and package_url are defined
Update for release 0.2.1
Important update

- Ensure all exec resource names are unique for this module
  If using the Logstash module with this one it will fail
- Update spec tests
- Add spec tests for plugin define
update to 0.2.2