v0.1.5 Add the first support for create user account

Backend/migrations/user_migration.php

@@ -6,6 +6,7 @@ use Illuminate\Database\Capsule\Manager as Capsule;
 Capsule::schema()->create('users', function ($table) {
     $table->increments('id');
     $table->string('name');
+    $table->integer('permission');
     $table->longtext('password');
     $table->longtext('remember_token');
     $table->timestamps();