* Fixed various 3.10 compatibility bugs, although running ircd.js under 3.10

  is strongly discouraged and should only be used for testing.
* Don't 301 if a PRIVMSG to an AWAY user originated non-locally.
* Support nick@server as valid targets for NOTICE and PRIVMSG.
* Support CS,NS,MS,OS,CHANSERV,NICKSERV,MEMOSERV,OPERSERV, and IDENTIFY
  commands, these are helper commands per Bahamut 1.4 used to send messages to
  services only.  Thanks to Foobar for pointing this and the above item out.
* Support oper sending of messages to #*mask.tld as per RFC.
* Cleaned up the global message sending routine, added numeric 413,414 per RFC.
* INVITE wasn't propagating across the network, and an invite wasn't expiring
  once a user entered a channel after being invited like it should've.
* Enhanced the DEBUG oper command to accept arguments depending on what debug
  setting you want to tweak.  "DEBUG D" to toggle debug mode on/off, and
  "DEBUG Y <val>" to set branch.yield_freq to <val>, suggested by DigitalMan.