ndn/apps: add global routing helper

Change-Id: Id2bfb035424e2214d3dad1d00da95a0715c716c9
diff --git a/.gitignore b/.gitignore
index dbc9c2f..1ea55fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,7 @@
 ndn-tools
 openflow
 PyNDN2
+PSync
 util
 .vagrant
 *.pyc