* Skip gitlab tests if dependencies aren't met
* Skip certain unittests if passlib is not installed
* Fix tests with deps on paramiko to skip if paramiko is not installed
* Use pytest to skip for cloudstack
If either on Python-2.6 or the cs library is not installed we cannot run
this test so skip it
* gitlab_hook: renaming module name
* gitlab_hook: rename module in documentation
* gitlab_hook: remove plural in docs and code
* gitlab_hook: fix unit test functions
