nfd: Update to the latest dev release

Change-Id: I2ad460e2e85a3e668aa432b1abc5d2c2df5cf6bc
diff --git a/nfd/Makefile b/nfd/Makefile
index 6e441c8..87c151f 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-0.4.0
+GIT_VERSION=4310d505a7705022490bac64222121daf194e510
 
 # Package name
 NAME=nfd
 
 # Package version
-VERSION=0.4.0
+VERSION=0.4.0-15-g4310d50
 
 # PPA version
-PPA_VERSION=3
+PPA_VERSION=1
 
 include ../packaging.mk