nlsr: Update to the released version 0.2.2

Change-Id: I2c6628dfec2b643f14fdb0c114c280be5d9fc82a
diff --git a/nlsr/debian/control b/nlsr/debian/control
index ae20759..3384ab5 100644
--- a/nlsr/debian/control
+++ b/nlsr/debian/control
@@ -5,7 +5,7 @@
  dh-systemd (>= 1.5),
  python (>= 2.7.0),
  pkg-config (>= 0.26),
- ndn-cxx-dev (>= 0.3.0~rc0.2),
+ ndn-cxx-dev (>= 0.4.0),
  liblog4cxx10-dev (>= 0.10.0),
  libcrypto++-dev (>= 5.6.1),
  protobuf-compiler (>= 2.4.0),