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/nlsr/debian/control.precise b/nlsr/debian/control.precise
index c3dd413..3888043 100644
--- a/nlsr/debian/control.precise
+++ b/nlsr/debian/control.precise
@@ -4,7 +4,7 @@
 Build-Depends: debhelper (>= 8.0.0),
  python (>= 2.7.0),
  pkg-config (>= 0.26),
- ndn-cxx-dev (>= 0.2.0~rc1.1),
+ ndn-cxx-dev (>= 0.2.0~rc2),
  liblog4cxx10-dev (>= 0.10.0),
  libcrypto++-dev (>= 5.6.1),
  protobuf-compiler (>= 2.4.0),