why not using laravel config Authentication Model name?

[pajooh]

in app/config/auth.php, there is a 'model' property, using this is more flexible than current hardcoded user model in Comment model:

    public function user()
    {
        return $this->belongsTo('User');
    }

also, it is assumed that the user model have to has username property, getting this property name as config option makes this package workable with custom user models like Sentry, etc.

[neilcrookes]

Sounds like a good idea to me. Can you send me a PR?