Login, logout, register

chillamor,

This might help but it’s not a plugin. I added the following directly to the very end of my theme functions.php. It adds a link to your primary menu and runs from wp-login. It redirects user right back to the current page so users do not have to go to their profile at all. It works well on my site using WP 4.01. Just make sure you add the name of your primary navigation menu where it is indicated below, (replace the uppercase text).

You can see it here: http://pain-and-depression.com/Library/front_page/

Unfortunately, I cannot put the code into Dutch, but I hope this gives you a start.

//Add login/logout link to primary navigation menu 

add_filter('wp_nav_menu_items', 'add_login_logout_link', 10, 2);
function add_login_logout_link($items, $args)  {

  //replace uppercase text with name of your primary menu

	if( is_admin() ||  $args-> INSERT THE NAME OF YOUR PRIMARY NAVIGATION MENU != 'primary' )
		return $items; 

	$redirect = ( is_home() ) ? false : get_permalink();
	if( is_user_logged_in( ) )
		$link = '<a href="' . wp_logout_url( $redirect ) . '" title="' 

.  __( 'Log out' ) .'">' . __( 'Log out' ) . '</a>';
	else  $link = '<a href="' . wp_login_url( $redirect  ) . '" title="' .  

__( 'Log in' ) .'">' . __( 'Log in' ) . '</a>';

	return $items.= '<li id="log-in-out-link">'. $link . '</li>';
}