use variable for crowbar_lib_dir as it is used in multiple places
use variable for crowbar_lib_dir as it is used in multiple places

vmoravec/automation,vmoravec/automation,gosipyan/automation,SUSE-Cloud/automation,vmoravec/automation,aspiers/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,vmoravec/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation