install[apt]: dont install maven2
backup: variable rename for clarity
backup: add --cleanup=all to remove all subvols explicitly
backup: prompt before doing --cleanup=all
backup: add a safety measure to ensure incremental backups arent deleted
clipboard: use secondary clipboard
backup: pull snapshot to a sub
backup: move deleted message to deleteSnapshots()
backup: ensure that all snapshots exist before deleting any
backup: add --delete option to delete snapshots