Remove several code paths exclusive to Django 1.4
Document why AUTH_PROFILE_MODULE is still supported
Adjust basket line to retrieve strategy from basket instance

We don't need to assign the strategy onto the line directly now that we
don't support Django 1.4.
Define __repr__ for the core Price class
Merge branch 'master' into fix/django14

Conflicts:
	docs/source/releases/v0.7.rst
	oscar/apps/basket/abstract_models.py
	oscar/apps/customer/abstract_models.py
	oscar/core/compat.py
	sites/demo/settings.py
Update Oscar's get_user_model to remove support for Django 1.4

Also drop an overly optimistic comment about multi-column indexes; afaik
they still haven't landed in Django.
Merge branch 'fix/django14'