Add correct token and fix typos
Add start_at and end_at as cache busting for smoke tests

Varnish will cache the /test url. This will make the smoke test fail if
ran repeateadly, before the cache expires. By adding a start_at and
end_at, it will function as a cache busting mechansim, retrieving a
fresh set of results
Merge pull request #117 from alphagov/smokey

Add correct token and fix typos