Allow read-only access to all pages implemented via Classes/form.php

[plbowers]

A group could be given access to a page but with read-only access specified. In that case a "disabled" or "readonly" attribute would be added to each input field and no DB update/insert/delete would occur.

See http://userspice.com/forums/topic/function-level-access-control/

This could also be extended to allow not just "everything" (as it is now) and "readonly" but various other "modes". Thus a group administrator (NOT a system administrator) might be able to see or modify part of a form but not the whole form...