Merge branch '2.7' into 2.8

* 2.7:
  update test for Twig performance optimizations
  [WebProfilerBundle] Increase retry delays between toolbarAction ajax calls
  support sapi_windows_vt100_support for php 7.2+
  bumped Symfony version to 2.7.42
  updated VERSION for 2.7.41
  update CONTRIBUTORS for 2.7.41
  updated CHANGELOG for 2.7.41
  [HttpFoundation] Added "null" type on Request::create docblock
  Allow trans filter to be safe

Author: nicolas-grekas

DeprecationErrorHandler.php

@@ -195,7 +195,8 @@ private static function hasColorSupport()
     {
         if ('\\' === DIRECTORY_SEPARATOR) {
             return
-                '10.0.10586' === PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD
+                defined('STDOUT') && function_exists('sapi_windows_vt100_support') && sapi_windows_vt100_support(STDOUT)
+                || '10.0.10586' === PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD
                 || false !== getenv('ANSICON')
                 || 'ON' === getenv('ConEmuANSI')
                 || 'xterm' === getenv('TERM');