Sync build flags and CI scripts with ndn-cxx

Change-Id: I977af445cd989996d3938d4a3edad0175cc6038a
diff --git a/.gitignore b/.gitignore
index 9198d45..c3c9cd0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,4 +29,4 @@
 *.py[cod]
 
 # Other
-/VERSION
+/VERSION.info