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/ndn-cpp/c/transport/socket-transport.h b/ndn-cpp/c/transport/socket-transport.h
index b0a0979..85e297e 100644
--- a/ndn-cpp/c/transport/socket-transport.h
+++ b/ndn-cpp/c/transport/socket-transport.h
@@ -8,7 +8,7 @@
 #define NDN_SOCKETTRANSPORT_H
 
 #include <sys/socket.h>
-#include "../common.h"
+#include <ndn-cpp/c/common.h>
 #include "../errors.h"
 
 #ifdef __cplusplus