Short: Disables AGA for stupid games. V2.0

KillAGA		Allows you to run old, badly written, programs (mainly demos
		and some games) from your A1200/4000 hard disk without having
		to continually reboot and switch chip settings.  On return from
		the program, the system returns to full AGA state.  Version
		2.0, binary only.
		Author:  Jolyon Ralph