Modify ini_cron to initialize depending on environment (blessed, staging, ...). Run backups.
Stop creating mcrond/cron folder: relies now on cron_xxx folder.
mcrond exit if no mcron/mcron file, with a message.
save_bundles save with correct date a full backup
save_bundles only delete incremental bundles.
save_bundles only start deleting after the *last* full bundle.
save_bundles delete any full bundle older than the last 3 full bundles.