The various knobs and gewgaws in the account settings had grown organically,
and were kind of a big mess. We had things spread around too many pages and in
somewhat random order.
This change rearranges things so that the user profile information comes first
(name, e-mail address, avatar, etc). Next is settings, which includes general
settings and notifications. Groups is moved to be third on the list (instead of
first), and finally the authentication page has the password and API tokens