Update build_crowbar.sh to make cleanup more paranoid.
Update build_crowbar.sh to make cleanup more paranoid.

aplanas/crowbar,aplanas/crowbar,rhafer/crowbar,crowbar/crowbar,nkrinner/crowbar,vwallfahrer/crowbar,rsalevsky/crowbar,toabctl/crowbar,crowbar/crowbar,aspiers/crowbar,SUSE-Cloud/crowbar,SUSE-Cloud/crowbar,dirkmueller/crowbar,MaximilianMeister/crowbar,rsalevsky/crowbar,MaximilianMeister/crowbar,toabctl/crowbar,mmnelemane/crowbar,aspiers/crowbar,vwallfahrer/crowbar,nkrinner/crowbar,dirkmueller/crowbar,mmnelemane/crowbar,tserong/crowbar,tserong/crowbar,rhafer/crowbar,rhafer/crowbar