Comments for RouteLocator
Remove erroneous test variable

This is an artifact from the initial test development. It should never
have been committed.
Test for RouteLocator
Proxy route args through to controller actions

In the event that a route is actually passed arguments, those arguments
are proxied directly through to the corresponding controller action via
RouteLocator. The request and response objects are still passed as the
final two arguments to every controller action retrieved through the
RouteLocator.