Document the new feature in metarefresh to specify the entity types to load.

docs/simplesamlphp-automated_metadata.txt

@@ -132,6 +132,18 @@ The metarefresh module supports the following configuration options:
 :   The format of the generated metadata files. This must match the
     metadata source added in `config.php`.
 
+`types`
+:	The sets of entities to load. An array containing strings identifying the different types of entities that will be
+	loaded. Valid types are:
+
+	* saml20-idp-remote
+	* saml20-sp-remote
+	* shib13-idp-remote
+	* shib13-sp-remote
+	* attributeauthority-remote
+
+	All entity types will be loaded by default.
+
 Each metadata source has the following options:
 
 `src`
@@ -154,6 +166,10 @@ Each metadata source has the following options:
 :   This is an array which will be combined with the metadata fetched to
     generate the final metadata array.
 
+`types`
+:	Same as the option with the same name at the metadata set level. This option has precedence when both are specified,
+	allowing a more fine grained configuration for every metadata source.
+
 
 After you have configured the metadata sources, you need to give the
 web-server write access to the output directories. Following the previous example:

modules/metarefresh/config-templates/config-metarefresh.php

@@ -51,6 +51,20 @@ $config = array(
 							51 => array('class' => 'core:AttributeMap', 'oid2name'),
 						),
 					),
+
+					/*
+					 * The sets of entities to load, any combination of:
+					 *  - 'saml20-idp-remote'
+					 *  - 'saml20-sp-remote'
+					 *  - 'shib13-idp-remote'
+					 *  - 'shib13-sp-remote'
+					 *  - 'attributeauthority-remote'
+					 *
+					 * All of them will be used by default.
+					 *
+					 * This option takes precedence over the same option per metadata set.
+					 */
+					//'types' => array(),
 				),
 			),
 			'expireAfter' 		=> 60*60*24*4, // Maximum 4 days cache time.
@@ -61,6 +75,19 @@ $config = array(
 			 * Can be 'flatfile' or 'serialize'. 'flatfile' is the default.
 			 */
 			'outputFormat' => 'flatfile',
+
+
+			/*
+			 * The sets of entities to load, any combination of:
+			 *  - 'saml20-idp-remote'
+			 *  - 'saml20-sp-remote'
+			 *  - 'shib13-idp-remote'
+			 *  - 'shib13-sp-remote'
+			 *  - 'attributeauthority-remote'
+			 *
+			 * All of them will be used by default.
+			 */
+			//'types' => array(),
 		),
 	),
 );