Move INSTALLED_APPS to apps.py

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Split admin into its own app.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Unused.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Unused.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Unused import.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Unused.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Unused.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Unused.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Now unused.
Sync project.utils.test.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
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Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>