Fixing "batches.h" header inclusions.

closes #11
diff --git a/apps/ndn-consumer-batches.cc b/apps/ndn-consumer-batches.cc
index 398ec02..ddc2e85 100644
--- a/apps/ndn-consumer-batches.cc
+++ b/apps/ndn-consumer-batches.cc
@@ -27,7 +27,8 @@
 #include "ns3/string.h"
 #include "ns3/uinteger.h"
 #include "ns3/double.h"
-#include "ns3/batches.h"
+
+#include "../utils/batches.h"
 
 NS_LOG_COMPONENT_DEFINE ("ndn.ConsumerBatches");
 
diff --git a/apps/ndn-consumer-batches.h b/apps/ndn-consumer-batches.h
index fc7b322..6f9167d 100644
--- a/apps/ndn-consumer-batches.h
+++ b/apps/ndn-consumer-batches.h
@@ -23,7 +23,7 @@
 
 #include "ndn-consumer.h"
 #include "ns3/traced-value.h"
-#include "ns3/batches.h"
+#include "../utils/batches.h"
 
 namespace ns3 {
 namespace ndn {
diff --git a/utils/batches.cc b/utils/batches.cc
index 1dbccfa..6292b50 100644
--- a/utils/batches.cc
+++ b/utils/batches.cc
@@ -18,7 +18,7 @@
  * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
  */
 
-#include "ns3/batches.h"
+#include "batches.h"
 
 namespace ns3 {