Add header comment; PSR-2 fixes; remove seeders

migrations/2015_02_24_000000_create_posts_table.php

@@ -1,11 +1,19 @@
 <?php
 
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 use Flarum\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
 
 class CreatePostsTable extends Migration
 {
-
     /**
      * Run the migrations.
      *