Fix bundled versions of ndn-cxx, NFD, and ndn-tools

Change-Id: I3acff6a2f9a636eef91a3698b37fe8c7d95b2602
diff --git a/make-deps.sh b/make-deps.sh
index ae73214..9378aca 100755
--- a/make-deps.sh
+++ b/make-deps.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 
-NDN_CXX_COMMIT=${NDN_CXX_COMMIT:-master}
-NFD_COMMIT=${NFD_COMMIT:-master}
-NDN_TOOLS_COMMIT=${NDN_TOOLS_COMMIT:-master}
+NDN_CXX_COMMIT=${NDN_CXX_COMMIT:-ndn-cxx-0.5.1}
+NFD_COMMIT=${NFD_COMMIT:-NFD-0.5.1}
+NDN_TOOLS_COMMIT=${NDN_TOOLS_COMMIT:-ndn-tools-0.4}
 
 GIT=${GIT:-https://github.com/named-data}