rulebuilder ... support startup rules
	STARTUP events for region=NONE
	refactor loadRegions for robustness
ActiveSpace - smarter test actor paths
	1. figure out if regions are L-R/R-L
	2. start test actor before the first
	3. continue motion past the last
ActiveSpace ... add support for region=NONE rules
	add parsing for rules on region=NONE
	add new entry point for actor add/drop
	add new startup rule interpretation
	add listing of region=NONE rules
	augment testing code to trigger these
	add new event type "STARTUP"
	update Rule class to make region optional
	add region=NONE rules to sample rules.xml
ActiveSpace - trigger startup events
	extend KinectedSpace to have a start method
	update app to call it after init
	update applet to call it after init
KinectedSpace ... detect and report new actors
	note that we still don't reasonably detect actor drops