ndn-cxx, nfd, ndn-tools: Update for the new releases (0.3.4, 0.3.4, and 0.2)

Bump revision of repo-ng to force rebuild.

Change-Id: Iec2273d6e0676d0af9e05d5dd33a3afc58a2a68f
Refs: #3132
diff --git a/net/nfd/Portfile b/net/nfd/Portfile
index b209d3c..292b7c6 100644
--- a/net/nfd/Portfile
+++ b/net/nfd/Portfile
@@ -4,14 +4,14 @@
 PortSystem          1.0
 PortGroup           github 1.0
 
-github.setup        named-data NFD NFD-0.3.3
-checksums           rmd160  66621fa72cb64787435e24e4b4dbb93728621910 \
-                    sha256  0de0f2e08aa4c202f25e918c6186be55da8541b7ec2a65cdf5143c52c9747136
+github.setup        named-data NFD NFD-0.3.4
+checksums           rmd160  3a0935a502d5f1e8a9f84824be92ad16fc925ff7 \
+                    sha256  912e69ecb138c1e17f9b6e7c174fe27bac1b9b94615a0ae399a63d32aadf5c38
 
 name                nfd
 homepage            http://named-data.net/doc/NFD/
 license             GPL3+
-version             0.3.3
+version             0.3.4
 epoch               3
 
 categories          net