SAMLSSP: SimpleSAMLphp configuration notes
==========================================

* Expose NameID in attributes
Configure authproc.sp in such a way that the NameID attributes
becomes available:

	'authproc.sp' => array(
		....
		/* append NameID to available attributes */
		20  => array(
	                  'class' => 'saml:NameIDAttribute',
	                  'attribute' => 'NameID',
	                  'format' => '%V',
		),
		....
		
* Use alternative SimpleSAMLphp session store
Joomla uses a random session cookie name, and SimpleSAMLphp needs to align
with the Joomla session. The easiest solution is to use an alternative 
session mechanism, by relying on 
	'store.type' => 'memcache'
instead of the default
	'store.type' => 'phpsession'