Auto-send NickServ password when MOTD ends

[Breakthrough]

Current identifier (now commented out) used to search for the end of MOTD was:

if re.search(":End of /MOTD command.", line):
    self.s.send("PRIVMSG nickserv :identify hum4n1ty\n")
    # join channel (now replaced with !join trigger)

This is customizable per-server however, so like !join, humanitybot now waits for a command (!ns) to authenticate/identify itself to NickServ. One possible approach is to look for a request from NickServ for the password, or perhaps combine approaches (queuing/throttling the number of NickServ requests until a valid confirmation is recieved).