offset message

# say = 0, party = 1, guild = 2, area = 3, trade = 4, greet = 9,
# private = 11-18, p-notice = 21, emote = 26, global = 27, r-notice = 25,
# raid = 32, megaphone = 213, guild-adv = 214
int32  channel

string message
