- Add global -Cdirectory # to chdir to directory
- svs remove -B  # set break points in subdirectories
- svs status -c  # only show changed files
- support saves Tags (like p4 change numbers)
- don't squash file permissions (+w) on 'svs import' (or others).

- restore:
    - svs restore -d'date' file-list
    - svs restore -r3h,15m file-list
- Support warnings in general. And -q.
- Help:
    - Create superhelpful die messages.