fixed: #252 now setUpClass handles the one-time run.
Fixing CLI failures from Hudson automation job.

* Info() method returns a python dictionary (not a list) or None
* Added decorator to TestGlobalParams due to Redmine #3964
Merge pull request #256 from omaciel/fix_cli_tests

Fixing CLI failures from Hudson automation job.
previous one is not the right approach: using self.__class__.<> instead. thanks @omaciel
removing __class__.
Merge pull request #253 from gkhachik/issue252

fixed: #252 now setUpClass handles the one-time run.