root Makefile: rm_db: Confirm deletion with user. Merged postgres_user, rm_postgres_user into db, rm_db so that deletion confirmation applies to user deletion as well (which would indirectly cause the DB to be deleted).
root Makefile: rm_db: Confirm deletion with user. Merged postgres_user, rm_postgres_user into db, rm_db so that deletion confirmation applies to user deletion as well (which would indirectly cause the DB to be deleted).