TODO: From should always be read-only and show the current role.

TODO: Task should be part of heading

TODO: description and "document" link should be inline before the message form instead of being part of the form

TODO: B: If there's only one possible recipient, don't show the checkbox

TODO: fix problem that To: is blank in view mode

TODO: make attachments be read-only links in display mode, instead of showing checkboxes

TODO: fix bug that you can't add an attachment

TODO: add "select all" javascript checkbox for To field