Merge branch '2.3' into 2.7

* 2.3:
  Improved the PHPdoc of FileSystem::copy()
  [Validator] Test DNS Email constraints using checkdnsrr() mock
  [travis] Run real php subprocesses on hhvm for Process component tests
  bug #18161 [Translation] Add support for fuzzy tags in PoFileLoader
  [Form] Fix NumberToLocalizedStringTransformer::reverseTransform with big integers
  [Form] Fix INT64 cast to float in IntegerType.
  [SecurityBundle][PHPDoc] Added method doumentation for SecurityFactoryInterface
  FrameworkBundle: Client: getContainer(): fixed phpdoc
  [Validator] Updating inaccurate docblock comment

Conflicts:
	.travis.yml
	src/Symfony/Component/Validator/Tests/Constraints/EmailValidatorTest.php

Author: nicolas-grekas

Tests/HttpCache/ResponseCacheStrategyTest.php

@@ -16,13 +16,13 @@
 namespace Symfony\Component\HttpKernel\Tests\HttpCache;
 
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\HttpCache\EsiResponseCacheStrategy;
+use Symfony\Component\HttpKernel\HttpCache\ResponseCacheStrategy;
 
-class EsiResponseCacheStrategyTest extends \PHPUnit_Framework_TestCase
+class ResponseCacheStrategyTest extends \PHPUnit_Framework_TestCase
 {
     public function testMinimumSharedMaxAgeWins()
     {
-        $cacheStrategy = new EsiResponseCacheStrategy();
+        $cacheStrategy = new ResponseCacheStrategy();
 
         $response1 = new Response();
         $response1->setSharedMaxAge(60);
@@ -41,7 +41,7 @@ public function testMinimumSharedMaxAgeWins()
 
     public function testSharedMaxAgeNotSetIfNotSetInAnyEmbeddedRequest()
     {
-        $cacheStrategy = new EsiResponseCacheStrategy();
+        $cacheStrategy = new ResponseCacheStrategy();
 
         $response1 = new Response();
         $response1->setSharedMaxAge(60);
@@ -59,7 +59,7 @@ public function testSharedMaxAgeNotSetIfNotSetInAnyEmbeddedRequest()
 
     public function testSharedMaxAgeNotSetIfNotSetInMasterRequest()
     {
-        $cacheStrategy = new EsiResponseCacheStrategy();
+        $cacheStrategy = new ResponseCacheStrategy();
 
         $response1 = new Response();
         $response1->setSharedMaxAge(60);

phpunit.xml.dist

@@ -30,7 +30,7 @@
         <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener">
             <arguments>
                 <array>
-                    <element><string>Symfony\Component\HttpFoundation</string></element>
+                    <element key="time-sensitive"><string>Symfony\Component\HttpFoundation</string></element>
                 </array>
             </arguments>
         </listener>