all: Adding typedefs near forward declarations of Interest/ContentObject/Name

refs #29
diff --git a/disabled/ndn-decoding-helper.h b/disabled/ndn-decoding-helper.h
index 10b4dda..8a33be3 100644
--- a/disabled/ndn-decoding-helper.h
+++ b/disabled/ndn-decoding-helper.h
@@ -30,6 +30,9 @@
 class Interest;
 class ContentObject;
 
+typedef Interest InterestHeader;
+typedef ContentObject ContentObjectHeader;
+
 /**
  * \brief Helper class to decode ccnb formatted Ndn message
  */