ndn-traffic-generator: Update package to build against latest ndn-cxx

Change-Id: Iac93273263fd86c5a55b86c64791b47a1c38c17a
diff --git a/ndn-traffic-generator/debian/control b/ndn-traffic-generator/debian/control
index 2102afa..5b0662e 100644
--- a/ndn-traffic-generator/debian/control
+++ b/ndn-traffic-generator/debian/control
@@ -4,7 +4,7 @@
 Build-Depends: debhelper (>= 8.0.0),
  python (>= 2.7.0),
  pkg-config (>= 0.26),
- ndn-cxx-dev (>= 0.3.0~rc0.2)
+ ndn-cxx-dev (>= 0.4.1)
 Standards-Version: 3.9.2
 Section: net
 Homepage: http://github.com/named-data/ndn-tlv-ping