sort langs codes
add simplesamlphp support
config_rr-default.php contains example how to enable it
minor tabs fix
add showing feds on providers members list
minor ui fixes
rm empty fields from input
closes #7
added support for simplesamlphp
to enample:

in config_rr.php:
$config['simplesamlphp'] = array(
  'enabled'=>true,
   location'=>'simplesamlphp_PATH/_include.php',
   'authsourceid'=>'default-sp',
   'attributes'=> array(
      'username'=>'eduPersonPrincipalName',
      'mail'=>'mail'
  ),
);

and make sure that cookie names match jagger and simplesamlphp
in jagger -> config.php
$config['sess_cookie_name']
and path matches both locations too