nlsr: Update to the latest (master branch) version

Change-Id: I17e2d6993fbd174599f63feafe14c94983ddadff
diff --git a/nlsr/Makefile b/nlsr/Makefile
index ebbd017..4ff7ad6 100644
--- a/nlsr/Makefile
+++ b/nlsr/Makefile
@@ -2,13 +2,13 @@
 GIT_URL=https://github.com/named-data/NLSR
 
 # Tag name or commit hash for checkout
-GIT_VERSION=NLSR-0.5.2
+GIT_VERSION=4a90b9ae52d35c1940cf25f1178eb5027810bbae
 
 # Package name
 NAME=nlsr
 
 # Package version
-VERSION=0.5.2
+VERSION=0.5.2-12-g4a90b9ae
 
 # PPA version
 PPA_VERSION=1