updated Dockerfile
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
Added -v arg to utils