core: move common.hpp to core/
Headers in core/ are now included as `#include "core/*.hpp"`.
This allows NFD to rely less on include paths when used as a submodule in
another codebase, such as ndnSIM and NFD-Android.
refs #3127
Change-Id: Ia38f3c97427e17ff7b5401281f1fe875b5d5313e
diff --git a/tools/ndn-autoconfig-server.cpp b/tools/ndn-autoconfig-server.cpp
index 84bcf74..50632ee 100644
--- a/tools/ndn-autoconfig-server.cpp
+++ b/tools/ndn-autoconfig-server.cpp
@@ -23,7 +23,7 @@
* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
*/
-#include "version.hpp"
+#include "core/version.hpp"
#include <ndn-cxx/encoding/tlv-nfd.hpp>
#include <ndn-cxx/face.hpp>
#include <ndn-cxx/security/key-chain.hpp>