add release date

--HG--
branch : HEAD
diff --git a/NEWS b/NEWS
index cb680ed..4e5310d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-0.6
+0.6 [2005/06/09]
 
 * first standalone release
 * changed license to three-clause BSD