peter: no, there shouldn't be a site-wide-admin header in the CSV for bulk uploads. Our reasoning is that site-wide-admin-ness is not a dotlrn-user-specific property, and adding it here would make it ripe for misuse. For an analogy, it would be like if there was a "-root" toggle to the "useradd" command in linux.
The link to toggle site-wide-admin-ness on the /admin/users page is there for convenience, since it appears that there's no UI in oacs to make someone a SWA. thinking about the link now, i think it might do more harm than good in the long run.
