title: Authenticate users from more than two tables in laravel 5
body: <p>As I know <code>Auth::attempt</code> is used to authenticate users from <code>users</code> table,  but i want to authenticate another users from <code>managers</code> table and admin from <code>admins</code> table. I know there are <code>laravel-multiauth</code> plugin already exist. But can we create our own <code>AuthServiceProvider</code> for authenticating users from multiple tables..?</p>