renaming: ndn-cpp to ndn-cpp-dev

Change-Id: Iff3e4ff53a0005b7dd35c57d03da76b347170d03
diff --git a/src/c/data.h b/src/c/data.h
index 4750ae9..ffaa83c 100644
--- a/src/c/data.h
+++ b/src/c/data.h
@@ -7,7 +7,7 @@
 #ifndef NDN_DATA_H
 #define NDN_DATA_H
 
-#include <ndn-cpp/c/data-types.h>
+#include <ndn-cpp-dev/c/data-types.h>
 #include "name.h"
 #include "publisher-public-key-digest.h"
 #include "key-locator.h"