model+test: Fixing tests and making sure all tests pass

Refs #1005 (http://redmine.named-data.net/)
diff --git a/examples/ndn-simple-with-pit-count-stats.cc b/examples/ndn-simple-with-pit-count-stats.cc
index d7983c9..725da66 100644
--- a/examples/ndn-simple-with-pit-count-stats.cc
+++ b/examples/ndn-simple-with-pit-count-stats.cc
@@ -108,7 +108,7 @@
   consumerHelper.SetAttribute ("Frequency", StringValue ("10")); // 10 interests a second
   consumerHelper.Install (nodes.Get (0)); // first node
 
-  // Producer
+  // // Producer
   ndn::AppHelper producerHelper ("ns3::ndn::Producer");
   // Producer will reply to all requests starting with /prefix
   producerHelper.SetPrefix ("/prefix");