Enable timeout change in _wait_for_visible_element.

Sometimes it can be handy to override the standard timeout. I will use it in event testing setup as the original timeout is too long if the automate policy is already assigned.
Fresh lint
fix race condition with tag selection
linty fresh access control
Merge pull request #201 from dajohnso/fix_user_tagging

Fix user tagging
Merge pull request #200 from psav/test_provider_confirm

Fixed old reference
Merge pull request #198 from mfalesni/lint

Fresh lint
Merge pull request #185 from mfalesni/modify_visible_timeout

Enable timeout change in _wait_for_visible_element.
Added OpenStack API based on novaclient

Removed OpenStack API based on EC2
Renamed class from OpenstackEC2System to OpenstackSystem
Added new yaml data for openstack