repo-ng: Update

Change-Id: I74ae16db49a5a487f5f6eeecc9a273dd364826a6
diff --git a/repo-ng/debian/control b/repo-ng/debian/control
index 4ac81fb..45c9303 100644
--- a/repo-ng/debian/control
+++ b/repo-ng/debian/control
@@ -5,7 +5,7 @@
  dh-systemd (>= 1.5),
  python (>= 2.7.0),
  pkg-config (>= 0.26),
- libndn-cxx-dev (>= 0.6.5)
+ libndn-cxx-dev (>= 0.6.6)
 Standards-Version: 3.9.2
 Section: net
 Homepage: http://github.com/named-data/repo-ng