some platforms don't provide version information

mod/admin.php

@@ -285,14 +285,14 @@ function admin_page_federation(&$a) {
 		// get a total count for the platform, the name and version of the
 		// highest version and the protocol tpe
 		$c = qu('SELECT COUNT(*) AS `total`, `platform`, `network`, `version` FROM `gserver`
-				WHERE `platform` LIKE "%s" AND `last_contact` > `last_failure` AND `version` != ""
+				WHERE `platform` LIKE "%s" AND `last_contact` > `last_failure`
 				ORDER BY `version` ASC;', $p);
 		$total = $total + $c[0]['total'];
 
 		// what versions for that platform do we know at all?
 		// again only the active nodes
 		$v = qu('SELECT COUNT(*) AS `total`, `version` FROM `gserver`
-				WHERE `last_contact` > `last_failure` AND `platform` LIKE "%s"  AND `version` != ""
+				WHERE `last_contact` > `last_failure` AND `platform` LIKE "%s"
 				GROUP BY `version`
 				ORDER BY `version`;', $p);