[SearchEngine] Add support for queries by date

lib/Alchemy/Phrasea/Core/Provider/UnicodeServiceProvider.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2012 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Core\Provider;
+
+use Silex\Application;
+use Silex\ServiceProviderInterface;
+
+class UnicodeServiceProvider implements ServiceProviderInterface
+{
+    public function register(Application $app)
+    {
+        $app['unicode'] = $app->share(function($app) {
+            return new \unicode();
+        });
+    }
+
+    public function boot(Application $app)
+    {
+    }
+}