ndn-cxx, nfd: Bumping version of 0.2.0-rc2

nlsr: Bumping to the latest release

ndn-tlv-ping, ndn-traffic-generator, ndndump, repo-ng: Bumping ppa version to
force rebuild against the latest version of the library.
diff --git a/ndndump/Makefile b/ndndump/Makefile
index 4e6fe8c..cd0a564 100644
--- a/ndndump/Makefile
+++ b/ndndump/Makefile
@@ -11,6 +11,6 @@
 VERSION=0.0.1
 
 # PPA version
-PPA_VERSION=1
+PPA_VERSION=2
 
 include ../packaging.mk