Fix loss of query params in Router and unit test

src/Ratchet/Http/Router.php

@@ -53,6 +53,8 @@ class Router implements HttpServerInterface {
                 $parameters[$key] = $value;
             }
         }
+        $parameters = array_merge($parameters, $request->getQuery()->getAll());
+
         $url = Url::factory($request->getPath());
         $url->setQuery($parameters);
         $request->setUrl($url);

tests/unit/Http/RouterTest.php

@@ -15,8 +15,18 @@ class RouterTest extends \PHPUnit_Framework_TestCase {
     protected $_req;
 
     public function setUp() {
+        $queryMock = $this->getMock('Guzzle\Http\QueryString');
+        $queryMock
+            ->expects($this->any())
+            ->method('getAll')
+            ->will($this->returnValue(array()));
+
         $this->_conn    = $this->getMock('\Ratchet\ConnectionInterface');
         $this->_req     = $this->getMock('\Guzzle\Http\Message\RequestInterface');
+        $this->_req
+            ->expects($this->any())
+            ->method('getQuery')
+            ->will($this->returnValue($queryMock));
         $this->_matcher = $this->getMock('Symfony\Component\Routing\Matcher\UrlMatcherInterface');
         $this->_matcher
             ->expects($this->any())