adding orphan file listing and deleting
Merge pull request #108 from jlsherrill/orphan_delete

adding orphan file listing and deletion
adding puppet_install_distributor and running the model tests
adding unit test
fixes from the PR review
fixing old unused unit test
Merge pull request #110 from mccun934/add-puppet-master-dist

adding puppet_install_distributor and running the model tests
Upgrading pulp to 2.3