Fix import errors
Add missing app_label to test model
skip import error test on django 1.7+ and pep8
Set DateTimePickerInput.format on Django 1.7+
Import receives in the ready() call since the models are registered there
Fix AutoSlugFieldTest.test_17_migration test
Make sure oscar apps are imported after customised
Skip unittest on Django 1.7

We don’t load the dashboard app as separate app anymore
Flake8