hassox/warden — pull request #74 by choxi (2013-04-10 01:52:29+00:00)
Title: scope should be a symbol

I just spent an embarrassingly long amount of time of debugging something that eventually led to this fix:

```diff
- login_as(user, :scope => user)
+ login_as(user, :scope => :user)
```

I think it would be helpful if warden complained when anything but a symbol is passed in for the scope.