Add Roberto Tirabassi, for various Windows fixes.

--HG--
branch : HEAD
diff --git a/THANKS b/THANKS
index da0f66e..73fd75f 100644
--- a/THANKS
+++ b/THANKS
@@ -6,3 +6,4 @@
 Heiko Hund <heiko@ist.eigentlich.net>
 Joel Ebrahimi <joel.ebrahimi@gmail.com>
 Pierre <pierre.dev@gmail.com>
+Roberto Tirabassi <rtirabassi@3di.it>