Merge branch '2.6' into 2.7

* 2.6: (21 commits)
  Revert "bug #14262 [TwigBundle] Refresh twig paths when resources change. (aitboudad)"
  InvalidResourceException file name
  [Validators] Remove forgotten space in a translation key [nl]
  [Validators] Correct translation key and content [nl]
  bumped Symfony version to 2.6.9
  updated VERSION for 2.6.8
  updated CHANGELOG for 2.6.8
  added missing CVE number
  bumped Symfony version to 2.3.30
  updated VERSION for 2.3.29
  update CONTRIBUTORS for 2.3.29
  updated CHANGELOG for 2.3.29
  [Validators] Missing translations for arabic language.
  Code style
  fixed C
  [HttpKernel][Bundle] Check extension implements ExtensionInterface
  [DebugBundle] Fix config XSD
  [CS] [Console] StreamOuput : fix loose comparison
  [Framework][router commands] fixed failing test.
  [HttpKernel] Do not call the FragmentListener if _controller is already defined
  ...

Conflicts:
	src/Symfony/Component/HttpKernel/Kernel.php
	src/Symfony/Component/Serializer/Normalizer/PropertyNormalizer.php

Author: fabpot

Loader/XliffFileLoader.php

@@ -148,7 +148,7 @@ private function parseFile($file)
         $source = str_replace('http://www.w3.org/2001/xml.xsd', $location, $source);
 
         if (!@$dom->schemaValidateSource($source)) {
-            throw new InvalidResourceException(implode("\n", $this->getXmlErrors($internalErrors)));
+            throw new InvalidResourceException(sprintf('Invalid resource provided: "%s"; Errors: %s', $file, implode("\n", $this->getXmlErrors($internalErrors))));
         }
 
         $dom->normalizeDocument();