Users, Groups, and Privileges

I've been revisiting the new design for users, groups, and privileges. Users are logins but might include email addresses as identifiers in order to do something more evite-esque. That part may very well wait until v2.5 or v3 when we do multiple-ids. More importantly, groups can now have three different kinds of members: users (logins right now), IP addresses (with subnet range?), and geographic areas (like only people in California/USA or only people with known anonymisers). Groups will get better breakdown of privileges and in v2 there will be a block group. Still have yet to figure out what to do when people belong to several groups with varying privileges...

I am very inclined to show the header and footer when people are blocked so they can login to get past it, but this will be different than it works now, so some people will be unhappy. On the flip side, other people have been asking for this. We'll have to see how this plays out...