Merge branch '2.3' into 2.4

* 2.3:
  Minor doc fix.
  Simplified the way to update PHPUnit to the latest version
  [Process] Minor README update
  [HttpFoundation] Basic auth in url is broken when using PHP CGI/FPM
  Fixed a html error "Element ul is not closed" in logger.html.twig
  [HttpFoundation] Officialize the 308 redirect RFC
  issue #10808 crawler test
  Empty select with attribute name="foo[]" bug fix
  Fixed contextually wrong translation

Author: fabpot

Request.php

@@ -972,7 +972,7 @@ public function getPort()
      */
     public function getUser()
     {
-        return $this->server->get('PHP_AUTH_USER');
+        return $this->headers->get('PHP_AUTH_USER');
     }
 
     /**
@@ -982,7 +982,7 @@ public function getUser()
      */
     public function getPassword()
     {
-        return $this->server->get('PHP_AUTH_PW');
+        return $this->headers->get('PHP_AUTH_PW');
     }
 
     /**

Tests/RequestTest.php

@@ -209,7 +209,7 @@ public function testCreate()
         $this->assertEquals(80, $request->getPort());
         $this->assertEquals('test.com', $request->getHttpHost());
         $this->assertEquals('testnopass', $request->getUser());
-        $this->assertNull($request->getPassword());
+        $this->assertSame('',$request->getPassword());
         $this->assertFalse($request->isSecure());
 
         $request = Request::create('http://test.com/?foo');