Integrate name change (add /ndn/multicast/ prefix). Additionally updated unit tests to test cases of
many torrent segments and many manifests.

Change-Id: Ieb3b3971fb09e31ddb15d85b5907ee7be41ef1ba
diff --git a/src/main.cpp b/src/main.cpp
index c4240d9..2fd441d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -103,7 +103,7 @@
           manifests.insert(manifests.end(), ms.first.begin(), ms.first.end());
         }
         auto torrentPrefix = fs::canonical(dataPath).filename().string();
-        outputPath += torrentPrefix;
+        outputPath += ("/" + torrentPrefix);
         auto torrentPath =  outputPath + "/torrent_files/";
         // write all the torrent segments
         for (const TorrentFile& t : torrentSegments) {