build: increase version number

Refs: #5045
Change-Id: I95b8f09faafdebec9d734a7c6c3fcf7b52d4e25c
diff --git a/wscript b/wscript
index c87b2a8..b6fd731 100644
--- a/wscript
+++ b/wscript
@@ -1,6 +1,6 @@
 # -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
 
-VERSION = '0.6.4'
+VERSION = '0.7'
 APPNAME = 'ndn-tools'
 GIT_TAG_PREFIX = 'ndn-tools-'