From 586496601fd0737795d7fa10a53c7dd68df38818 Mon Sep 17 00:00:00 2001
From: "P.M. Sutter" <sutter@iap.fr>
Date: Sun, 1 Dec 2013 20:49:28 -0600
Subject: [PATCH] added a version of pruneVoids whichs filters the output in a
 way compatible with the standard emrger trees format