diff --git a/library/Businessprocess/Node.php b/library/Businessprocess/Node.php
index c7dc07d..a68adc2 100644
--- a/library/Businessprocess/Node.php
+++ b/library/Businessprocess/Node.php
@@ -118,8 +118,6 @@ abstract class Node
         99 => 'PENDING'
     );
 
-    abstract public function __construct($object);
-
     /**
      * Set whether to treat acknowledged hosts/services always as UP/OK
      *
diff --git a/library/vendor/php-diff/lib/Diff/Renderer/Html/Array.php b/library/vendor/php-diff/lib/Diff/Renderer/Html/Array.php
index 76a314d..2607753 100644
--- a/library/vendor/php-diff/lib/Diff/Renderer/Html/Array.php
+++ b/library/vendor/php-diff/lib/Diff/Renderer/Html/Array.php
@@ -150,7 +150,7 @@ class Diff_Renderer_Html_Array extends Diff_Renderer_Abstract
 	{
 		$start = 0;
 		$limit = min(strlen($fromLine), strlen($toLine));
-		while($start < $limit && $fromLine{$start} == $toLine{$start}) {
+		while($start < $limit && $fromLine[$start] == $toLine[$start]) {
 			++$start;
 		}
 		$end = -1;