Updated test cases w.r.t to review meeting with Peter Walsh and @dnahodi...

...l.

Broadly:

* changed application of "protection" to be at the project level, rather than at the release level (as this is what the policy actually states);
* added explicit test cases for filtering (as this has been the source of some bugs in the past).
https://github.com/cucumber/cucumber/wiki/Scenario-Outlines

Let me do what's shown in the link.  I think it'll make these specs much more readable.