add clear_crumbs fro class and instance methods to reset crumbs items
add clear_crumbs fro class and instance methods to reset crumbs items

acrogenesis-lab/crummy,acrogenesis-lab/crummy,zachinglis/crummy,acrogenesis-lab/crummy,zachinglis/crummy,acrogenesis-lab/crummy,zachinglis/crummy,zachinglis/crummy