update purge for boot2docker
update purge for boot2docker

florianm/datacats,wardi/datacats,reneenoble/datacats,JJediny/datacats,deniszgonjanin/datacats,datacats/datacats,poguez/datacats,datawagovau/datacats,JackMc/datacats,datacats/datacats,wardi/datacats,poguez/datacats,deniszgonjanin/datacats,datawagovau/datacats,florianm/datacats,dborzov/datacats,JJediny/datacats,JackMc/datacats,reneenoble/datacats,dborzov/datacats