cli/user list tests
removed test_list_user_5 - ui only, fixes as sugested
Take advantage of inheritance for UI classes
Remove unimplemented __init__ for CLI classes
Merge pull request #638 from elyezer/ui-inheritance-refactor

Take advantage of inheritance for UI classes
Merge pull request #635 from alda519/cli_user

cli/user list tests
Adding CRUD CLI tests for Repositories.

Work In Progress as there are a few on-going tasks by the developers
which still need to be merged to get this done.
Removed __init__ as it is not needed anymore.
Adding CLI support and tests for System Group.

Initial support and CLI CRUD tests for system groups. Sadly this cannot
yet safely be merged due to the fact that there are 2 major bugzilla
issues blocking assertions, deletions and updates.

* https://bugzilla.redhat.com/show_bug.cgi?id=1080475
* https://bugzilla.redhat.com/show_bug.cgi?id=1084240

This handles Issue #170.
Removed __init__ as it not needed anymore.
Merge pull request #639 from elyezer/cli-inheritance-refactor

Remove unimplemented __init__ for CLI classes
Merge pull request #633 from omaciel/system-groups-cli

Adding CLI support and tests for System Group.
Merge pull request #620 from omaciel/add-repo-cli

Adding CRUD CLI tests for Repositories.