added confirmaion support for down + stepdown. added
  Usage: mite [options] [command]

  Commands:

    status                 show migratrion status
    init                   init the _migration table and migrations directory
    up                     run all unexecuted migrations
    stepup                 run the first unexecuted migration
    down [options]         run all the down migrations
    stepdown [options]     step down one migration from the current head
    create                 create a new (empty) migration file
    help [command]         display general usage information, or usage info for a specific command
    audit                  determine what's wrong with your schema
    *

  Options:

    -h, --help     output usage information
    -V, --version  output the version number support.