Add classmethod decorator to SetUpClass.
Merge pull request #1648 from kbidarkar/add-decorators

Add classmethod decorator to SetUpClass.
updated setUpClass method with decorator
Merge pull request #1646 from sghai/fix-test

Updated setUpClass method with decorator and using alpha string for org name
Method waiting for async task now return foreman task info or JSON repsonse.

Fix the robottelo/test_entitiy delete_manifest tests
Update unit tests for Organization.delete_manifest

Drop two test methods:

* `OrganizationTestCase.test_delete_manifest_200`
* `OrganizationTestCase.test_delete_manifest_202`

Add method `OrganizationTestCase.test_delete_manifest` to replace the two above.
This new test method is more thorough than the tests it replaces, as it covers
the following four possiblities:

* `synchronize` arg to `delete_manifest` is `True`, server returns HTTP 200.
* `synchronize` arg to `delete_manifest` is `True`, server returns HTTP 202.
* `synchronize` arg to `delete_manifest` is `False`, server returns HTTP 200.
* `synchronize` arg to `delete_manifest` is `False`, server returns HTTP 202.
Merge pull request #1647 from kbidarkar/fix-notaskid

Methods waiting for async task now return foreman task info or JSON repsonse
BZ 1158620 is fixed, so un-skip test code

BZ 1158620 is fixed, which means that HTTP GET calls to
`/katello/api/v2/systems` returns an `organization_id`. Un-skip some test code
which relies on this attribute.

    $ nosetests tests/foreman/api/test_contentview.py -m test_subscribe_system_to_cv
    .
    ----------------------------------------------------------------------
    Ran 1 test in 73.045s

    OK
Repository.sync now returns foreman task info or JSON response.
Merge pull request #1651 from Ichimonji10/bz-1158620

BZ 1158620 is fixed, so un-skip test code
Merge pull request #1656 from kbidarkar/fix-reposync-api

Repository.sync now returns foreman task info or JSON response.