Merge branch '2.7' into 2.8

* 2.7:
  Increase the inlining YAML level for config:debug
  [Serializer] Minor: fix CS and PHPDoc
  [Form] fix tests
  [Serializer] Ensure that groups are strings
  [Debug] Tell that the extension is for PHP 5 only
  Static code analysis
  Update AnnotationDirectoryLoader.php
  added a test
  Escape the delimiter in Glob::toRegex
  [FrameworkBundle] Fix template location for PHP templates
  [FrameworkBundle] Add path verification to the template parsing test cases

Author: fabpot

Tests/XPath/TranslatorTest.php

@@ -74,7 +74,7 @@ public function testHtmlShakespear($css, $count)
         $document = simplexml_import_dom($document);
         $bodies = $document->xpath('//body');
         $elements = $bodies[0]->xpath($translator->cssToXPath($css));
-        $this->assertEquals($count, count($elements));
+        $this->assertCount($count, $elements);
     }
 
     public function getXpathLiteralTestData()