lock lastChecked table

cron/getPredictions.php

@@ -48,7 +48,7 @@ foreach ($routes as $route => $stops) {
 	}
 }
 
-dbq($db, "LOCK TABLES `predictions` WRITE, `messages` WRITE");
+dbq($db, "LOCK TABLES `predictions` WRITE, `messages` WRITE, `lastChecked` WRITE");
 dbq($db, "DELETE FROM `messages` WHERE `agency` = '{$agency}'");
 dbq($db, "DELETE FROM `predictions` WHERE `agency` = '{$agency}'");
 

cron/getRouteConfig.php

@@ -32,7 +32,7 @@ if ($lastFetched + $getRouteConfig_waitSeconds < time()) {
 	if (@$source = file_get_contents($url)) {
 		if ($thisXML = simplexml_load_string($source)) {
 			
-			dbq($db, "LOCK TABLES `routes` WRITE, `stops` WRITE, `route_stops` WRITE");
+			dbq($db, "LOCK TABLES `routes` WRITE, `stops` WRITE, `route_stops` WRITE, `lastChecked` WRITE");
 			
 			dbq($db, "DELETE FROM `routes` WHERE `agency` = '{$agency}'");
 			dbq($db, "DELETE FROM `stops` WHERE `agency` = '{$agency}'");