Merge pull request #55 from brandondunne/Add_use_case_to_yum_spec_version_available

Add use case to yum spec version available
further parameterize disk#create_partition, accept params for % of free space
Merge pull request #52 from movitto/create_partitions_percentages

further parameterize disk#create_partition, accept params for % of free ...
Add #subscribed_products method and auto-attach to #subscribe
Change pools to channels to be different from SubscriptionManager
Add #subscribed_products to Rhn
Update tests
Merge pull request #59 from brandondunne/subscribing_issues

Add #subscribed? method and auto-attach to #subscribe
Bumping version to v0.2.3
Fix test
Merge pull request #60 from brandondunne/subscribing_issues

Fix test
Bumping version to v0.3.0
Add functionality to create YUM repo config files
Merge pull request #63 from brandondunne/repo_files

Add functionality to create YUM repo config files
Add CRUD of hosts file entries
Add tests for CRUD of hosts file entries