improve require-clean-working-tree script
improve require-clean-working-tree script

oleg-babintsev/fullcalendar,blubberly/fullcalendar,fullcalendar/fullcalendar,kleisauke/fullcalendar,blubberly/fullcalendar,kleisauke/fullcalendar,MeteorAdminz/fullcalendar,fullcalendar/fullcalendar,avanti-technologies/fullcalendar,arshaw/fullcalendar,fullcalendar/fullcalendar,laoneo/fullcalendar,MeteorAdminz/fullcalendar,laoneo/fullcalendar,fullcalendar/fullcalendar,kleisauke/fullcalendar,MeteorAdminz/fullcalendar,oleg-babintsev/fullcalendar,oleg-babintsev/fullcalendar,pietervisser/fullcalendar,blubberly/fullcalendar,arshaw/fullcalendar,arshaw/fullcalendar,avanti-technologies/fullcalendar,laoneo/fullcalendar,pietervisser/fullcalendar,pietervisser/fullcalendar,arshaw/fullcalendar,avanti-technologies/fullcalendar,kleisauke/fullcalendar,MeteorAdminz/fullcalendar,avanti-technologies/fullcalendar,blubberly/fullcalendar