Clarify license on arrays test files.

tests/arrays.js

@@ -1,3 +1,9 @@
+/*
+ * Javascript binary array performance tests
+ * Copyright (C) 2011 Joel Martin
+ * Licensed under LGPL-3 (see LICENSE.txt)
+ */
+
 var ctx, i, j, randlist,
     new_normal, new_imageData, new_arrayBuffer,
     browser = Browser.browser + " " +

tests/json2graph.py

@@ -1,4 +1,11 @@
 #!/usr/bin/env python
+
+'''
+Use matplotlib to generate performance charts
+Copyright 2011 Joel Martin
+Licensed under GPL version 3 (see docs/LICENSE.GPL-3)
+'''
+
 # a bar plot with errorbars
 import sys, json, pprint
 import numpy as np