* Changes to ibmPc's zkcmCpuDetectionModC::setSmpMode(), which sanitize it.
* Implemented an iterator type for hardwareIdListC (finally).
* Prototyped my approach for cleanly temporarily taking the i8254 down, then
  bringing it back up again.
* Improved the logic for IO-APICs' identifyActiveIrq(), and collapsed the
  vectorBase allocation logic.