nfd, nlsr, repo-ng, ndns, ndn-tlv-ping: Switch dependency to nfd in upstart scripts

Change-Id: Icad64e34e91ee9881cf53482677c4c2cab42aefc
diff --git a/ndn-tlv-ping/Makefile b/ndn-tlv-ping/Makefile
index 591cae0..9624e86 100644
--- a/ndn-tlv-ping/Makefile
+++ b/ndn-tlv-ping/Makefile
@@ -11,6 +11,6 @@
 VERSION=0.1.5
 
 # PPA version
-PPA_VERSION=2
+PPA_VERSION=4
 
 include ../packaging.mk