When doing GET /api/v1/users/{user} as an unauthenticated user,
gitea throws a 500 because it's trying to dereference elements
from the context user. It wants to do this to see whether to
show the primary email and will do that if the logged in user
is admin or the user in question. However, if ctx.User is nil,
go gets really unhappy.
The update call on the user call races if there is more than one
repository creation concurrently, leading to incorrect count of
repos. Split things in two, so that we call the update for last
visibility (which isn't problematic if it races, since it can only
ever be best-effort anyway). This way we can atomically increment
the count of repos.
* Fix documentation on Oauth2.Enable flag
The docs list this as ENABLED, but in the source code it's
ENABLE, meaning following the docs leads to confusion.
* Update sample config for oauth2.ENABLE
Monty TaylorandLunny Xiao
