Moved -effect implementation out of OSD code and into core since
the implementations were identical across Windows/SDL and implemented
in the core itself.
specifies the number of seconds after the last video update that will
cause auto-termination of MAME. Also modified it to output a message
when the watchdog triggers the exit.
Updated windows.txt to reflect this option and the debugger_font options
which were never previously documented.
-numprocessors <auto|value>
Specify the number of processors to use for work queues. Specifying
"auto" will use the value reported by the system or environment
variable OSDPROCESSORS. To avoid abuse, this value is internally limited
to 4 times the number of processors reported by the system.
The default is "auto".
