Adding broadcast hint as a parameter to FetchManager

This hint must be consistent with the one used by content server, but it
was not the case before (and was defined independently twice anyways).

Another change in this commit: broadcast forwarding hint does not
contain application name anymore. Not sure if we need to return it back
or not.

Change-Id: I685620ba1ec74a641015c91f1d6e7b5ff5969215
diff --git a/test/test-serve-and-fetch.cc b/test/test-serve-and-fetch.cc
index 7919246..a551404 100644
--- a/test/test-serve-and-fetch.cc
+++ b/test/test-serve-and-fetch.cc
@@ -145,7 +145,7 @@
   server.registerPrefix(localPrefix);
   server.registerPrefix(broadcastPrefix);
 
-  FetchManager fm(ccnx_fetch, bind(simpleMap, _1));
+  FetchManager fm(ccnx_fetch, bind(simpleMap, _1), Name("/local/broadcast"));
   HashPtr hash = pub.get<0> ();
   Name baseName = Name ("/")(deviceName)(APPNAME)("file")(hash->GetHash(), hash->GetHashBytes());