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>
diff --git a/tools/ndn-autoconfig/base.hpp b/tools/ndn-autoconfig/base.hpp
index bf195c6..d69f49c 100644
--- a/tools/ndn-autoconfig/base.hpp
+++ b/tools/ndn-autoconfig/base.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2015,  Regents of the University of California,
+ * Copyright (c) 2014-2016,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -26,9 +26,7 @@
 #ifndef NFD_TOOLS_NDN_AUTOCONFIG_BASE_HPP
 #define NFD_TOOLS_NDN_AUTOCONFIG_BASE_HPP
 
-#include "common.hpp"
-
-#include <boost/noncopyable.hpp>
+#include "core/common.hpp"
 
 #include <ndn-cxx/face.hpp>
 #include <ndn-cxx/security/key-chain.hpp>
diff --git a/tools/ndn-autoconfig/main.cpp b/tools/ndn-autoconfig/main.cpp
index 1708bdb..666cca1 100644
--- a/tools/ndn-autoconfig/main.cpp
+++ b/tools/ndn-autoconfig/main.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2015,  Regents of the University of California,
+ * Copyright (c) 2014-2016,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -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 "multicast-discovery.hpp"
 #include "guess-from-search-domains.hpp"
diff --git a/tools/nfd-autoreg.cpp b/tools/nfd-autoreg.cpp
index 6cc3288..b21fe6d 100644
--- a/tools/nfd-autoreg.cpp
+++ b/tools/nfd-autoreg.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2015,  Regents of the University of California,
+ * Copyright (c) 2014-2016,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -37,7 +37,7 @@
 #include <boost/program_options/variables_map.hpp>
 #include <boost/program_options/parsers.hpp>
 
-#include "version.hpp"
+#include "core/version.hpp"
 #include "core/network.hpp"
 
 using namespace ndn::nfd;
diff --git a/tools/nfd-status/format-helpers.hpp b/tools/nfd-status/format-helpers.hpp
index 11d3d5a..f98d8f1 100644
--- a/tools/nfd-status/format-helpers.hpp
+++ b/tools/nfd-status/format-helpers.hpp
@@ -26,7 +26,7 @@
 #ifndef NFD_TOOLS_NFD_STATUS_FORMAT_HELPERS_HPP
 #define NFD_TOOLS_NFD_STATUS_FORMAT_HELPERS_HPP
 
-#include "common.hpp"
+#include "core/common.hpp"
 
 namespace nfd {
 namespace tools {
diff --git a/tools/nfd-status/main.cpp b/tools/nfd-status/main.cpp
index a3033a6..b43e4cc 100644
--- a/tools/nfd-status/main.cpp
+++ b/tools/nfd-status/main.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/security/validator-null.hpp>
 
 #include <boost/program_options/options_description.hpp>
diff --git a/tools/nfd-status/module.hpp b/tools/nfd-status/module.hpp
index 07d5647..bf1b90c 100644
--- a/tools/nfd-status/module.hpp
+++ b/tools/nfd-status/module.hpp
@@ -26,7 +26,7 @@
 #ifndef NFD_TOOLS_NFD_STATUS_MODULE_HPP
 #define NFD_TOOLS_NFD_STATUS_MODULE_HPP
 
-#include "common.hpp"
+#include "core/common.hpp"
 #include <ndn-cxx/management/nfd-controller.hpp>
 
 namespace nfd {
diff --git a/tools/nfdc.cpp b/tools/nfdc.cpp
index fcb808f..31ce4f3 100644
--- a/tools/nfdc.cpp
+++ b/tools/nfdc.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2015,  Regents of the University of California,
+ * Copyright (c) 2014-2016,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -24,7 +24,7 @@
  */
 
 #include "nfdc.hpp"
-#include "version.hpp"
+#include "core/version.hpp"
 
 #include <boost/lexical_cast.hpp>
 #include <boost/algorithm/string.hpp>