allow pipeline commands to specify successful exit codes
allow tar exit status 1
use --ignore-failed-read
Backup::CLI::Helpers -> Backup::Utilities::Helpers
allow utilities to be configured; determine GNU or BSD tar
only allow exit(1) and use --ignore-failed-read with GNU tar
Backup::CLI::Utility -> Backup::CLI
move cli templates
ensure all system commands use Utilities#utility
reset Utilities in spec-live
update templates
update dependency system