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/repo-ng/Portfile b/net/repo-ng/Portfile
index 559b4ca..a5a9d66 100644
--- a/net/repo-ng/Portfile
+++ b/net/repo-ng/Portfile
@@ -12,6 +12,7 @@
 homepage            https://github.com/named-data/repo-ng
 license             GPL-3+
 version             0.0.8
+revision            1
 
 categories          net
 platforms           darwin