KinectedSpace - now supports image display

    major refactoring of media actions
    
    	created a MediaAction interface with methods for all
    	types of media, implemented it in the top level KinectedSpace,
    	and then passed that reference down to the space, through
    	the regions and rules to the regionevents.
    	
    	then (re)implemented sound and image rendering in the
    	KinectedSpace class (which now extends JWindow)