model+ndn.cxx+test: Finishing implementation of ApiFace (now timeouts are working as well)

Also, adding a basic test case to test ApiFace

Refs #1005 (http://redmine.named-data.net/)
diff --git a/test/ndnSIM-tests.cc b/test/ndnSIM-tests.cc
index a23dd05..face35e 100644
--- a/test/ndnSIM-tests.cc
+++ b/test/ndnSIM-tests.cc
@@ -24,6 +24,7 @@
 #include "ndnSIM-serialization.h"
 #include "ndnSIM-pit.h"
 #include "ndnSIM-fib-entry.h"
+#include "ndnSIM-api.h"
 
 namespace ns3
 {
@@ -40,6 +41,7 @@
     AddTestCase (new ContentObjectSerializationTest (), TestCase::QUICK);
     AddTestCase (new FibEntryTest (), TestCase::QUICK);
     AddTestCase (new PitTest (), TestCase::QUICK);
+    AddTestCase (new ApiTest (), TestCase::QUICK);
   }
 };