Deprecation removal branch of happy goodness

Pretty sure this fixes the issue Chris is seeing, but the error message is pretty bereft of identifying information:

```
[error] /data/www/input-dev.allizom.org/input/vendor/lib/python/django/views/generic/simple.py:8: DeprecationWarning: Function-based generic views have been deprecated; use class-based views instead.
[error]   DeprecationWarning
```

r?