Add attribution for Typesafe.

adriaanm · adriaanm · commit 139ba9d8759f · 2013-12-09T17:11:19.000-08:00
This was agreed on a while ago, but not yet implemented.
diff --git a/docs/LICENSE b/docs/LICENSE
@@ -1,5 +1,7 @@
 Copyright (c) 2002-2013 EPFL
 
+Copyright (c) 2011-2013 Typesafe, Inc.
+
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,
