Add authors of #40 and #37, thanks!

kuenishi · kuenishi · commit ee88b63d8e0b · 2015-03-11T22:26:22.000+09:00
diff --git a/AUTHORS b/AUTHORS
@@ -2,3 +2,5 @@ Kota Uenishi, @kuenishi
 Yuki Ito, @mururu
 Heinz N. Gies, @Licenser
 Andrew Kirilenko, @iced
+Brett Bethke, @bb4242
+Mike Watters, @zerth
