Prepare release 0.6.2

Change-Id: I50c8479efa4fff6244f50555d8ff552530bc4509
Refs: #4564
diff --git a/wscript b/wscript
index 43b1621..8a2efd4 100644
--- a/wscript
+++ b/wscript
@@ -26,7 +26,7 @@
 from waflib import Context, Logs, Utils
 import os, subprocess
 
-VERSION = '0.6.1'
+VERSION = '0.6.2'
 APPNAME = 'nfd'
 BUGREPORT = 'https://redmine.named-data.net/projects/nfd'
 URL = 'https://named-data.net/doc/NFD/'