[HttpKernel] Add request uri to Logger context

... so host info does not get lost in the logging. The current situation does not allow the user to determine at which host an error occured.

| Q             | A
| ------------- | ---
| Bug fix?      | [no]
| New feature?  | [yes]
| BC breaks?    | [no]
| Deprecations? | [no]
| Tests pass?   | [yes]
| Fixed tickets |
| License       | MIT
| Doc PR        |

Fixed typo

Distinguish route-params from request-uri

Update context consistency

... and inline the context variable.

Rename `route_params` to `route_parameters`

src/Symfony/Component/HttpKernel/EventListener/RouterListener.php

@@ -140,7 +140,10 @@ public function onKernelRequest(GetResponseEvent $event)
             }
 
             if (null !== $this->logger) {
-                $this->logger->info(sprintf('Matched route "%s"', $parameters['_route']), $parameters);
+                $this->logger->info(sprintf('Matched route "%s"', $parameters['_route']), array(
+                    'route_parameters' => $parameters,
+                    'request_uri' => $request->getUri(),
+                ));
             }
 
             $request->attributes->add($parameters);