examples: Restoring old examples that can be restored and fixing existing ones
diff --git a/examples/ndn-grid-topo-plugin-red-queues.cpp b/examples/ndn-grid-topo-plugin-red-queues.cpp
new file mode 100644
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+++ b/examples/ndn-grid-topo-plugin-red-queues.cpp
@@ -0,0 +1,109 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2015  Regents of the University of California.
+ *
+ * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
+ * contributors.
+ *
+ * ndnSIM is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * ndnSIM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * ndnSIM, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+// ndn-grid-topo-plugin-red-queues.cpp
+
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/ndnSIM-module.h"
+
+namespace ns3 {
+
+/**
+ * This scenario simulates a grid topology (using topology reader module)
+ *
+ * (consumer) -- ( ) ----- ( )
+ *     |          |         |
+ *    ( ) ------ ( ) ----- ( )
+ *     |          |         |
+ *    ( ) ------ ( ) -- (producer)
+ *
+ * All links are 1Mbps with propagation 10ms delay.
+ *
+ * FIB is populated using ndn::GlobalRoutingHelper.
+ *
+ * Consumer requests data from producer with frequency 10 interests per second
+ * (interests contain constantly increasing sequence number).
+ *
+ * For every received interest, producer replies with a data packet, containing
+ * 1024 bytes of virtual payload.
+ *
+ * To run scenario and see what is happening, use the following command:
+ *
+ *     NS_LOG=ndn.Consumer:ndn.Producer ./waf --run=ndn-grid-topo-plugin
+ */
+
+int
+main(int argc, char* argv[])
+{
+  CommandLine cmd;
+  cmd.Parse(argc, argv);
+
+  AnnotatedTopologyReader topologyReader("", 25);
+  topologyReader.SetFileName("src/ndnSIM/examples/topologies/topo-grid-3x3-red-queues.txt");
+  topologyReader.Read();
+
+  // Install NDN stack on all nodes
+  ndn::StackHelper ndnHelper;
+  ndnHelper.InstallAll();
+
+  ndn::StrategyChoiceHelper::InstallAll("/", "ndn:/localhost/nfd/strategy/best-route");
+
+  // Installing global routing interface on all nodes
+  ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
+  ndnGlobalRoutingHelper.InstallAll();
+
+  // Getting containers for the consumer/producer
+  Ptr<Node> producer = Names::Find<Node>("Node8");
+  NodeContainer consumerNodes;
+  consumerNodes.Add(Names::Find<Node>("Node0"));
+
+  // Install NDN applications
+  std::string prefix = "/prefix";
+
+  ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
+  consumerHelper.SetPrefix(prefix);
+  consumerHelper.SetAttribute("Frequency", StringValue("100")); // 100 interests a second
+  consumerHelper.Install(consumerNodes);
+
+  ndn::AppHelper producerHelper("ns3::ndn::Producer");
+  producerHelper.SetPrefix(prefix);
+  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
+  producerHelper.Install(producer);
+
+  // Add /prefix origins to ndn::GlobalRouter
+  ndnGlobalRoutingHelper.AddOrigins(prefix, producer);
+
+  // Calculate and install FIBs
+  ndn::GlobalRoutingHelper::CalculateRoutes();
+
+  Simulator::Stop(Seconds(20.0));
+
+  Simulator::Run();
+  Simulator::Destroy();
+
+  return 0;
+}
+} // namespace ns3
+
+int
+main(int argc, char* argv[])
+{
+  return ns3::main(argc, argv);
+}