Fixed PHP Fatal error. Implemented ArrayAccess methods to allow array…

… operator access to class properties. fixes NagiosEnterprises#20

www/api/application/libraries/factory/NagiosObject.php

@@ -100,5 +100,23 @@ public function get_type(){
 		return $this->_type;
 	}
 
+	public function offsetExists ($offset)
+	{
+		return isset($this->$offset);
+	}
+
+	public function offsetGet ($offset)
+	{
+		return $this->$offset;
+	}
 
-}
+	public function offsetSet ($offset, $value)
+	{
+		$this->$offset = $value;
+	}
+
+	public function offsetUnset ($offset)
+	{
+		unset($this->$offset);
+	}
+}