Use rationalized nav CSS on deactivate page; #664
Rationalize larger buttons used on some forms

Some forms use a larger button for the main thing one wants to do with
the form. Let's use more sensical CSS for it.
Merge branch 'master' into deactivate-button
Clean up text on deactivate form; #664
Rename delete to deactivate in models; #54
Fix a test, closing several parentheses; #54

This is the test that sent us off to chase down the security hole that
was closed in 864b1de01536d18b3d850daf04a96dd41e85e04e.
Remove errant pdb.set_trace call
Tweak whitespace formatting in schema
Add csrf_token to deactivate.html POST; #664

This actually uncovered a bug in Aspen where empty POST bodies cause an
exception in the request parser. We needed the csrf_token anyway, of
course, but really we're masking an underlying bug (to work around it we
would have needed *some* field, anyway).
Set user to None to logout; #664

Is this right? This can't be right. Is this right?