add licence headers

Datagrid/DatagridMapper.php

@@ -1,5 +1,13 @@
 <?php
-
+/*
+ * This file is part of the Sonata package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ * 
+ */
 namespace Sonata\BaseApplicationBundle\Datagrid;
 
 use Sonata\BaseApplicationBundle\Admin\Admin;

Datagrid/ListCollection.php

@@ -1,5 +1,13 @@
 <?php
-
+/*
+ * This file is part of the Sonata package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ */
 namespace Sonata\BaseApplicationBundle\Datagrid;
 
 

Datagrid/ListMapper.php

@@ -1,5 +1,13 @@
 <?php
-
+/*
+ * This file is part of the Sonata package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ */
 namespace Sonata\BaseApplicationBundle\Datagrid;
 
 use Sonata\BaseApplicationBundle\Admin\Admin;

Form/FormMapper.php

@@ -1,5 +1,13 @@
 <?php
-
+/*
+ * This file is part of the Sonata package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ */
 namespace Sonata\BaseApplicationBundle\Form;
 
 use Sonata\BaseApplicationBundle\Builder\FormBuilderInterface;