model: A couple of tricks and fixes in NDN.cxx, so it will play nice with python bindings

Refs #1011 (http://redmine.named-data.net/issues/1011)
diff --git a/bindings/scan-header.h b/bindings/scan-header.h
new file mode 100644
index 0000000..7d35e18
--- /dev/null
+++ b/bindings/scan-header.h
@@ -0,0 +1,58 @@
+/** -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/* 
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Alexander Afanasyev
+ * 
+ * GNU 3.0 license, See the LICENSE file for more information
+ * 
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "ns3/ndnSIM-module.h"
+
+using namespace ns3;
+using namespace ndn;
+
+static inline void
+__dummy_function_on_interest_callback_instantiation (Ptr<const Name>, Ptr<const Interest>)
+{
+}
+
+static inline void
+__dummy_function_on_data_callback_instantiation (Ptr<const Interest>, Ptr<const ContentObject>)
+{
+}
+
+static inline void
+__dummy_function_on_timeout_callback_instantiation (Ptr<const Interest>)
+{
+}
+
+static inline void
+__dummy_function_to_force_ndn_api_face_callback_instantiations ()
+{
+  ApiFace face (0);
+  Ptr<Interest> interest;
+  Ptr<Name> prefix;
+
+  face.ExpressInterest (interest,
+                        MakeCallback (__dummy_function_on_data_callback_instantiation),
+                        MakeCallback (__dummy_function_on_timeout_callback_instantiation)
+                        );
+
+  face.SetInterestFilter (prefix,
+                          MakeCallback (__dummy_function_on_interest_callback_instantiation));
+
+  std::string tmp ("bla");
+  char &test = tmp[0];
+}
+
+
+// /// @cond include_hidden
+// #ifdef PYTHON_SCAN
+// struct CallbackVoidNameInterest : public Callback<void, Ptr<const Name>, Ptr<const Interest> > { };
+// struct CallbackVoidInterestContentObject : public Callback<void, Ptr<const Interest>, Ptr<const ContentObject> > { };
+// struct CallbackVoidInterest : public Callback<void, Ptr<const Interest> > { };
+// #endif
+// /// @endcond
+