Modify grid example to work under redesigned content store
diff --git a/examples/ccnx-grid.cc b/examples/ccnx-grid.cc
index f5ed94f..4bab1f8 100644
--- a/examples/ccnx-grid.cc
+++ b/examples/ccnx-grid.cc
@@ -66,7 +66,7 @@
   Config::SetDefault ("ns3::DropTailQueue::MaxPackets", StringValue ("20"));
 
   // Set maximum number of packets that will be cached (default 100)
-  Config::SetDefault ("ns3::CcnxContentStore::Size", StringValue ("1000"));
+  Config::SetDefault ("ns3::CcnxContentStoreLru::Size", StringValue ("1000"));
   
   uint32_t nGrid = 3;
   Time finishTime = Seconds (20.0);