* Pull in django-waffle 0.10 and a fixed version of django-piston.
Both provide late-initialization support by not calling get_user_model
on import-time.
* Add alias for addons.buttons.js
* Update installed apps, fix grouping and naming.
* Fix app-names in settings
* re-add startup import to manage.py for now
Various more import fixes, all import rewrites are now done.
This unfortunately still failes because of some circular imports
depending on django not being setup early enough.