Added length check for optional parameters

setup.src

@@ -22,6 +22,7 @@ imports.utils.ParamLength = function(params)
 	return params.len
 end function
 imports.utils.GetParam = function(params, index)
+    if index < 0 or index >= params.len then return null
 	return params[index]
 end function
 imports.utils.HasFlag = function(params, short, long)