Update DependencyInjection/Configuration.php

Adding _routing for types

DependencyInjection/Configuration.php

@@ -247,6 +247,7 @@ class Configuration
                 ->append($this->getMappingsNode())
                 ->append($this->getSourceNode())
                 ->append($this->getBoostNode())
+                ->append($this->getRoutingNode())
             ->end()
         ;
 
@@ -373,4 +374,22 @@ class Configuration
 
         return $node;
     }
+    
+    /**
+     * Returns the array node used for "_routing".
+     */
+    protected function getRoutingNode()
+    {
+        $builder = new TreeBuilder();
+        $node = $builder->root('_routing');
+
+        $node
+            ->children()
+                ->scalarNode('required')->end()
+                ->scalarNode('path')->end()
+            ->end()
+        ;
+
+        return $node;
+    }
 }