Merge branch '2.7' into 2.8

* 2.7:
  Fix backport
  [travis] Upgrade phpunit wrapper & hirak/prestissimo
  [Bridge\PhpUnit] Workaround old phpunit bug, no colors in weak mode, add tests
  [PropertyAccess] Fix isPropertyWritable not using the reflection cache
  [PropertyAccess] Backport fixes from 2.7
  [Validator] use correct term for a property in docblock (not "option")
  [Routing] small refactoring for scheme requirement
  [PropertyAccess] Remove most ref mismatches to improve perf
  [Validator] EmailValidator cannot extract hostname if email contains multiple @ symbols
  [NumberFormatter] Fix invalid numeric literal on PHP 7
  [Process] fix docblock syntax
  Use XML_ELEMENT_NODE in nodeType check
  [PropertyAccess] Reduce overhead of UnexpectedTypeException tracking
  [PropertyAccess] Throw an UnexpectedTypeException when the type do not match
  [FrameworkBundle] Add tests for the Controller class
  [FrameworkBundle] Add tests for the Controller class
  [Process] getIncrementalOutput should work without calling getOutput

Conflicts:
	src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
	src/Symfony/Bridge/PhpUnit/TextUI/Command.php
	src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTest.php

Author: nicolas-grekas

Crawler.php

@@ -478,7 +478,7 @@ public function parents()
         $nodes = array();
 
         while ($node = $node->parentNode) {
-            if (1 === $node->nodeType) {
+            if (XML_ELEMENT_NODE === $node->nodeType) {
                 $nodes[] = $node;
             }
         }