make: Global change: Move all public headers to include folder.  Change source to including public headers using #include <ndn-cpp/*>. Split some header files to minimize exposing C .h files.
diff --git a/tests/test-get-async.cpp b/tests/test-get-async.cpp
index 536e164..9cdf28a 100644
--- a/tests/test-get-async.cpp
+++ b/tests/test-get-async.cpp
@@ -7,7 +7,7 @@
 #include <cstdlib>
 #include <sstream>
 #include <iostream>
-#include "../ndn-cpp/face.hpp"
+#include <ndn-cpp/face.hpp>
 
 using namespace std;
 using namespace ndn;