add ntp to installs
Merge branch 'master' of https://github.com/WU-ARL/ndn-ops
Merge branch 'master' of https://github.com/WU-ARL/ndn-ops
Merge branch 'master' of https://github.com/WU-ARL/ndn-ops
Merge branch 'master' of https://github.com/WU-ARL/ndn-ops
Merge branch 'master' of https://github.com/WU-ARL/ndn-ops
add memphis