Change in Openid discovery methods registered by hook_openid_discovery_method_info()

Return value of the Openid discovery methods registered by hook_openid_discovery_method_info() was changed.

Previously the registered discovery method returns only plain array of discovered services. Now it returns associative array with the following keys:

• 'services' (required) an array of discovered services (including OpenID version, endpoint URI, etc).
• 'claimed_id' (optional) new claimed identifer, found by following HTTP redirects during the services discovery.

Example: function _openid_xrds_discovery before change.

/**
 * OpenID discovery method: perform a XRDS discovery. 
 */
function _openid_xrds_discovery($claimed_id) {
  // stripped code
  return $services;
}

Example: function _openid_xrds_discovery after change.

/**
 * OpenID discovery method: perform a XRDS discovery.
 */
function _openid_xrds_discovery($claimed_id) {
   // stripped code
   if (!empty($services)) {
    return array(
      'services' => $services,
      'claimed_id' => $claimed_id,
    );
  }
}