* We now use an empty object as an associative array as opposed to using

  the built-in JS "Array" object.  This is because the Array object offers
  no facilities for associative arrays.
  Full details here:
  Thanks to Deuce for pointing this one out.  This fixes many minor quirks,
  such as "undefined" coming up in STATS M and soforth, since a general scan
  of the array object would also pick up on properties of the Array object.
* More general code cleanup, especially in ircd_server.js