Use symfony2.6 for dev (avoid deprecation issues)

Author: dantleech

composer.json

@@ -13,6 +13,7 @@
     },
     "minimum-stability": "dev",
     "require-dev": {
+        "symfony/symfony": "2.6",
         "symfony/process": "~2.3",
         "symfony/filesystem": "~2.3",
         "phpunit/phpunit": "~3.7.28",

src/PHPCR/Shell/DependencyInjection/Container.php

@@ -35,7 +35,7 @@ public function __construct($mode = self::MODE_STANDALONE)
 
     public function registerHelpers()
     {
-        $this->register('helper.question', 'Symfony\Component\Console\Helper\QuestionHelper');
+        $this->register('helper.question', 'Symfony\Component\Console\Helper\DialogHelper');
         $this->register('helper.editor', 'PHPCR\Shell\Console\Helper\EditorHelper');
         $this->register('helper.path', 'PHPCR\Shell\Console\Helper\PathHelper');
         $this->register('helper.repository', 'PHPCR\Shell\Console\Helper\RepositoryHelper')

src/PHPCR/Shell/Serializer/NodeNormalizer.php

@@ -47,7 +47,11 @@ public function normalize($node, $format = null, array $context = array())
             $propertyName = $property->getName();
 
             if (in_array($property->getType(), array(PropertyType::REFERENCE, PropertyType::WEAKREFERENCE))) {
-                $propertyValue = array_keys($propertyValue);
+                $nodesUuids = array();
+                foreach ((array) $propertyValue as $node) {
+                    $nodeUuids[] = $node->getIdentifier();
+                }
+                $propertyValue = $nodeUuids;
             }
 
             $res[$propertyName] = array(