Merge branch '4.4'

* 4.4:
  Remove space before self closing xml tag
  Added the missing "experimental" notices in some components
  use Cookie::create()

Author: javiereguiluz

components/http_foundation.rst

@@ -413,7 +413,7 @@ attribute::
 
     use Symfony\Component\HttpFoundation\Cookie;
 
-    $response->headers->setCookie(new Cookie('foo', 'bar'));
+    $response->headers->setCookie(Cookie::create('foo', 'bar'));
 
 The
 :method:`Symfony\\Component\\HttpFoundation\\ResponseHeaderBag::setCookie`

components/mime.rst

@@ -6,7 +6,7 @@
 The Mime Component
 ==================
 
-    The MIME component allows manipulating the MIME messages used to send emails
+    The Mime component allows manipulating the MIME messages used to send emails
     and provides utilities related to MIME types.
 
 Installation

components/phpunit_bridge.rst

@@ -645,7 +645,7 @@ If you have installed the bridge through Composer, you can run it by calling e.g
 
     It's possible to change the base version of PHPUnit by setting the
     ``SYMFONY_PHPUNIT_VERSION`` env var in the ``phpunit.xml.dist`` file (e.g.
-    ``<server name="SYMFONY_PHPUNIT_VERSION" value="5.5" />``). This is the
+    ``<server name="SYMFONY_PHPUNIT_VERSION" value="5.5"/>``). This is the
     preferred method as it can be committed to your version control repository.
 
     It's also possible to set ``SYMFONY_PHPUNIT_VERSION`` as a real env var