Short: Blanks mouse ptr on keypress. V1.21

MouseBlanker	Blanks the mouse pointer after a defined timeout or if you
		press any key.  Implemented as a commodity.  Requires at least
		AmigaOS 2.04.  Version 1.21, an update to version 1.13 on disk
		497.  Includes german version and source in C.
		Author:  Stefan Sticht