INSTALL: removed libnacl-dev from apt-get instruction
ifpps: bad grammar in printf()
tragen: add example types to -e (tcp|udp|icmp)
trafgen: added more example types -e <tcp|udp|icmp>
trafgen: added example types -e <tcp|udp|icmp>
Merge branch 'master' of https://github.com/jonschipp/netsniff-ng