Test:Check if multiple Activation keys can be attached to a system
- added a function to fetch the associated content-host with activation-key
- updated top menu locator names
Merge pull request #1627 from sghai/ak-test

Test:Check if multiple Activation keys can be attached to a system
removed unwanted navigation for some tests.

The navigation would be taken care by the search function, which
is called upon by the update function.
Merge pull request #1628 from kbidarkar/fix-os-ui

removed unwanted navigation for some tests.
Added test - to check content host names are unique

Added test - to check content host names are unique

Added test - to check content host names are unique

Added test - to check content host names are unique