Update examples

testsuite/conf/simple/Mailrc.conf

@@ -0,0 +1,11 @@
+import System.Directory
+
+resource = mail { 
+--	editor = do b <- doesFileExist "/usr/bin/emacs"
+--		    return $ if b then "emacs" else "vi" ,
+	editor = do b <- doesFileExist "/bin/sh"
+  		    return "sh",
+
+	attribution = \name -> "Today, "++name++" wrote :"
+}
+