Merge branch '2.7'

* 2.7:
  [RFC][Console] Added console style guide helpers (v2)
  [Validator] Add missing pt_BR translations
  [Translation][Profiler] Added a Translation profiler.
  Add parsing of hexadecimal strings for PHP 7
  [VarDumper] Add filters to casters
  Trim final stop from deprecation message
  [Configuration] improve description for ignoreExtraKeys on ArrayNodeDefinition
  [Validator] Added missing Hungarian translation
  [Validator] Fixed grammar in Hungarian translation
  CS: Unary operators should be placed adjacent to their operands
  CS: Binary operators should be arounded by at least one space
  remove useless tests that fail in php 7
  [Translator] fix test for php 7 compatibility
  [VarDumper] Add VarDumperTestCase and related trait
  Update phpdoc of ProcessBuilder#setPrefix()

Conflicts:
	src/Symfony/Bridge/ProxyManager/Tests/LazyProxy/Fixtures/php/lazy_service.php
	src/Symfony/Component/Routing/Matcher/ApacheUrlMatcher.php
	src/Symfony/Component/Routing/Matcher/Dumper/ApacheMatcherDumper.php
	src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php

ProcessBuilder.php

@@ -68,7 +68,7 @@ public function add($argument)
     }
 
     /**
-     * Adds an unescaped prefix to the command string.
+     * Adds a prefix to the command string.
      *
      * The prefix is preserved when resetting arguments.
      *