ndnmap-data-collector: Update

Change-Id: I74065af8352b0ed1f96e457db97b4f0eec04527c
diff --git a/ndnmap-data-collector/Makefile b/ndnmap-data-collector/Makefile
index eb925c0..c1420df 100644
--- a/ndnmap-data-collector/Makefile
+++ b/ndnmap-data-collector/Makefile
@@ -11,6 +11,6 @@
 VERSION=0.1.0-15-g29c1984
 
 # PPA version
-PPA_VERSION=1
+PPA_VERSION=2
 
 include ../packaging.mk