ndn-cxx: Update to version 0.4.1

Change-Id: Ica4cdd75afaa2068372731698d013c6cd9ad0d3f
diff --git a/ndn-cxx/Makefile b/ndn-cxx/Makefile
index c1d414b..d2424e5 100644
--- a/ndn-cxx/Makefile
+++ b/ndn-cxx/Makefile
@@ -2,13 +2,13 @@
 GIT_URL=https://github.com/named-data/ndn-cxx.git
 
 # Tag name or commit hash for checkout
-GIT_VERSION=5d69550c8cc03124ffcc302a79951bd13647bac1
+GIT_VERSION=ndn-cxx-0.4.1
 
 # Package name
 NAME=ndn-cxx
 
 # Package version
-VERSION=0.4.0-10-g5d69550
+VERSION=0.4.1
 
 # PPA version
 PPA_VERSION=1