Dont use cucumber to test engine integration

@benlovell @modsognir 
I think we can drop this particular expectation. It feels as though we're reaching into the internals of the engines and what they should (and already are) covering in their own specs.

In dropping this we can also drop the `title` element from the setup, meaning the `locale` and `path` stuff could  be exposed by the particular mount point, thus cleaning up this approach somewhat.

This would also apply to the other tool integration specs in this PR.