Netsniff-ng: update Readme with supported protocolls
Makefile: comment out -Wunused-but-set-parameter because it's not known on ubuntu 10.04
proto_80211_mac_hdr.c: fix comparison errors, occured with -Wtype-limits
proto_80211_mac_hdr.c: add forgotten bracket
bpf: replace define with actual value

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>