Added method for retrieving a component list subset.
Added method for retrieving a component list subset.

ical4j/ical4j,tschaible/ical4j,voronaam/ical4j,amannm/ical4j,tschaible/ical4j,ariordan/ical4j,voronaam/ical4j,ical4j/ical4j,voronaam/ical4j,tschaible/ical4j,ariordan/ical4j,amannm/ical4j,ariordan/ical4j,amannm/ical4j,ical4j/ical4j