Merge pull request #615 from oldskool/ip-logging

Minor changes:
- Rename/restyle migration, fix namespace
- Make IP address optional on PostReply command

migrations/2015_10_24_194000_add_ip_address_to_posts.php

@@ -0,0 +1,31 @@
+<?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.
+ */
+
+namespace Flarum\Core\Migration;
+
+use Flarum\Database\AbstractMigration;
+use Illuminate\Database\Schema\Blueprint;
+
+class AddIpAddressToPosts extends AbstractMigration
+{
+    public function up()
+    {
+        $this->schema->table('posts', function (Blueprint $table) {
+            $table->string('ip_address', 45)->nullable();
+        });
+    }
+
+    public function down()
+    {
+        $this->schema->table('posts', function (Blueprint $table) {
+            $table->dropColumn(['ip_address']);
+        });
+    }
+}