Remove tenant ID from barbican API calls

Change-Id: I2767a8c02a9327acb4b4cb9111f7478ebadfb557
Add skip on issue for latest barbican launchpad bugs

Added skip_on_issue decorators for launchpad bugs.

Change-Id: I48cd95b5422e33d5a3950b1a6cebbe9a394205e1
Fixed negative containers test for duplicate secret

The test_create_container_w_duplicate_secret_refs test is expected
to fail with an http 400.  Had to remove code which checked for a
successful return code (201) then use the container create return
code to assert the correct http 400 return code.  Also moved the
skip_on_issue call to the skip_open_issue decorator.

Change-Id: I0c9aad5f1aeda4c111f3fe0552a28a3da6660b48
Skip on issue for failing data driven container create test

Container create test fails for case where name is None.  Opened
launchpad bug https://bugs.launchpad.net/barbican/+bug/1354767
to report the error.  This CR adds the skip on issue for the
data driven test ddtest_create_generic_container_w_empty_or_null_name.

Also renamed the dataset item for the case where name is "None" to be
"none" rather than "null".

Change-Id: I13b7fbe979047eb598551b737e503a7a2b251a96
Merge "Add skip on issue for latest barbican launchpad bugs"
Merge "Remove tenant ID from barbican API calls"
Merge "Skip on issue for failing data driven container create test"
Merge "Fixed negative containers test for duplicate secret"