[2.1] Removing a few things for 2.1 that slipped into the 2.0 docs. I'll merge this commit into master (since 2.0 always merges into master), but then revert it

Author: weaverryan

components/class_loader.rst

@@ -33,9 +33,6 @@ You can install the component in many different ways:
 Usage
 -----
 
-.. versionadded:: 2.1
-   The ``useIncludePath`` method was added in Symfony 2.1.
-
 Registering the :class:`Symfony\\Component\\ClassLoader\\UniversalClassLoader`
 autoloader is straightforward::
 
@@ -45,8 +42,7 @@ autoloader is straightforward::
 
     $loader = new UniversalClassLoader();
 
-    // You can search the include_path as a last resort.
-    $loader->useIncludePath(true);
+    // register namespaces and prefixes here - see below
 
     $loader->register();
 

components/http_foundation/introduction.rst

@@ -335,46 +335,6 @@ To redirect the client to another URL, you can use the
 
     $response = new RedirectResponse('http://example.com/');
 
-Streaming a Response
-~~~~~~~~~~~~~~~~~~~~
-
-.. versionadded:: 2.1
-    Support for streamed responses was added in Symfony 2.1.
-
-The :class:`Symfony\\Component\\HttpFoundation\\StreamedResponse` class allows
-you to stream the Response back to the client. The response content is
-represented by a PHP callable instead of a string::
-
-    use Symfony\Component\HttpFoundation\StreamedResponse;
-
-    $response = new StreamedResponse();
-    $response->setCallback(function () {
-        echo 'Hello World';
-        flush();
-        sleep(2);
-        echo 'Hello World';
-        flush();
-    });
-    $response->send();
-
-Downloading Files
-~~~~~~~~~~~~~~~~~
-
-.. versionadded:: 2.1
-    The ``makeDisposition`` method was added in Symfony 2.1.
-
-When uploading a file, you must add a ``Content-Disposition`` header to your
-response. While creating this header for basic file downloads is easy, using
-non-ASCII filenames is more involving. The
-:method:`Symfony\\Component\\HttpFoundation\\Response::makeDisposition`
-abstracts the hard work behind a simple API::
-
-    use Symfony\Component\HttpFoundation\ResponseHeaderBag;
-
-    $d = $response->headers->makeDisposition(ResponseHeaderBag::DISPOSITION_ATTACHMENT, 'foo.pdf');
-
-    $response->headers->set('Content-Disposition', $d);
-
 Session
 -------
 

components/process.rst

@@ -61,14 +61,3 @@ instead::
         <?php echo 'Hello World'; ?>
     EOF);
     $process->run();
-
-.. versionadded:: 2.1
-    The ``ProcessBuilder`` class has been as of 2.1.
-
-To make your code work better on all platforms, you might want to use the
-:class:`Symfony\\Component\\Process\\ProcessBuilder` class instead::
-
-    use Symfony\Component\Process\ProcessBuilder;
-
-    $builder = new ProcessBuilder(array('ls', '-lsa'));
-    $builder->getProcess()->run();