nfd: Update to 0.6.3

Change-Id: Ie3890f6d66995b0394d5cd73c4efe477db657b9d
diff --git a/nfd/Makefile b/nfd/Makefile
index 15bf916..b5cd931 100644
--- a/nfd/Makefile
+++ b/nfd/Makefile
@@ -2,15 +2,15 @@
 GIT_URL=https://github.com/named-data/NFD.git
 
 # Tag name or commit hash for checkout
-GIT_VERSION=NFD-0.6.2
+GIT_VERSION=NFD-0.6.3
 
 # Package name
 NAME=nfd
 
 # Package version
-VERSION=0.6.2
+VERSION=0.6.3
 
 # PPA version
-PPA_VERSION=1
+PPA_VERSION=2
 
 include ../packaging.mk