Merge branch '2.3' into 2.6

* 2.3:
  [FrameworkBundle] Fix title and placeholder rendering in php form templates.
  RequestDataCollector - small fix
  renamed composer.phar to composer to be consistent with the Symfony docs
  [FrameworkBundle] bumped min version of Routing to 2.3
  removed composer --dev option everywhere
  fixed a test
  [Console] Fixed output bug, if escaped string in a formatted string.
  [Security] Remove ContextListener's onKernelResponse listener as it is used
  Revert "minor #12652 [HttpFoundation] [Hackday] #9942 test: Request::getContent() for null value (skler)"
  Revert "fixed assertion"
  fixed assertion
  [HttpFoundation] [Hackday] #9942 test: Request::getContent() for null value
  fixed URL
  Add reference to documentation in FormEvents phpdocs
  [YAML] Fix one-liners to work with multiple new lines
  Keep "pre" meaning for var_dump quick-and-dirty debug
  [Console][Table] Fix cell padding with multi-byte

Conflicts:
	src/Symfony/Bundle/FrameworkBundle/Resources/views/Form/widget_attributes.html.php
	src/Symfony/Bundle/FrameworkBundle/composer.json
	src/Symfony/Component/Console/Helper/TableHelper.php

Author: fabpot

DataCollector/RequestDataCollector.php

@@ -91,7 +91,7 @@ public function collect(Request $request, Response $response, \Exception $except
         $this->data = array(
             'format' => $request->getRequestFormat(),
             'content' => $content,
-            'content_type' => $response->headers->get('Content-Type') ? $response->headers->get('Content-Type') : 'text/html',
+            'content_type' => $response->headers->get('Content-Type', 'text/html'),
             'status_text' => isset(Response::$statusTexts[$statusCode]) ? Response::$statusTexts[$statusCode] : '',
             'status_code' => $statusCode,
             'request_query' => $request->query->all(),

README.md

@@ -95,5 +95,5 @@ Resources
 You can run the unit tests with the following command:
 
     $ cd path/to/Symfony/Component/HttpKernel/
-    $ composer.phar install
+    $ composer install
     $ phpunit