bug #70 - error messages on group deletion, warning cleanup

include/auth.php

@@ -28,7 +28,7 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
 		goaway($a->get_baseurl());
 	}
 
-	if(x($_SESSION['visitor_id']) && (! x($_SESSION['uid']))) {
+	if(x($_SESSION,'visitor_id') && (! x($_SESSION,'uid'))) {
 		$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 			intval($_SESSION['visitor_id'])
 		);

include/template_processor.php

@@ -128,7 +128,7 @@
 			#$s = str_replace(array("\n","\r"),array("§n§","§r§"),$s);
 			$s = $this->_build_nodes($s);
 			$s = preg_replace_callback('/\|\|([0-9]+)\|\|/', array($this, "_replcb_node"), $s);
-			$s = str_replace($this->search,$this->replace,$s);
+			$s = str_replace($this->search,$this->replace, (string) $s);
 			
 			return $s;
 		}