ssh_client fixture, updated/expanded ssh utils

- Needs a change to credentials.yaml, see credentials.yaml.template
- Tests!
selenium fixture now supports navigation fixtures
Merge pull request #79 from seandst/distributed-testing-selenium-shenanigans

selenium fixture now supports navigation fixtures
Merge pull request #83 from seandst/distributed-testing-ssh-shenanigans

ssh_client fixture, updated/expanded ssh utils
initial POC
added qe namespace automate model
new test org
* added support for ems auth events and VM events
* added setup work in automate for complete automation (one piece still missing)
removed listener url again
updated to reflect soap client fixture
refactored to use documented automate event calls, use new fixtures
fixed test setup bugs
include policy profile yaml for import