Fix issue with url parsing and /?

PHP's parse_url fails to parse url's containing
`/?`.  It returns false instead of something useful.

Fixes #2354

lib/Cake/Network/CakeRequest.php

@@ -222,7 +222,7 @@ protected function _url() {
 			$uri = substr($uri, strlen($base));
 		}
 		if (strpos($uri, '?') !== false) {
-			$uri = parse_url($uri, PHP_URL_PATH);
+			list($uri) = explode('?', $uri, 2);
 		}
 		if (empty($uri) || $uri == '/' || $uri == '//') {
 			return '/';

lib/Cake/Test/Case/Network/CakeRequestTest.php

@@ -104,11 +104,26 @@ public function testQueryStringParsingFromInputUrl() {
 		$_GET = array();
 		$request = new CakeRequest('some/path?one=something&two=else');
 		$expected = array('one' => 'something', 'two' => 'else');
-		$this->assertEquals($request->query, $expected);
+		$this->assertEquals($expected, $request->query);
 		$this->assertEquals('some/path?one=something&two=else', $request->url);
 
 	}
 
+/**
+ * Test that named arguments + querystrings are handled correctly.
+ *
+ * @return void
+ */
+	public function testQueryStringAndNamedParams() {
+		$_SERVER['REQUEST_URI'] = '/tasks/index/page:1?ts=123456';
+		$request = new CakeRequest();
+		$this->assertEquals('tasks/index/page:1', $request->url);
+
+		$_SERVER['REQUEST_URI'] = '/tasks/index/page:1/?ts=123456';
+		$request = new CakeRequest();
+		$this->assertEquals('tasks/index/page:1/', $request->url);
+	}
+
 /**
  * test addParams() method
  *
@@ -1623,6 +1638,7 @@ public function testInputDecodeExtraParams() {
 		);
 	}
 
+
 /**
  * loadEnvironment method
  *