control: remove specific unar version
Do not recreate internal space if one already exists

Previously, if the storage service internal location was changed to a
new location, this startup function would create a new one at the
default path. This now only tries to make a new internal location if
none exists at all.

refs #6819
Extract file request: adjust path for uncompressed packages
Extract file request: return 404 if requested file not present
Extract file request: return 501 if package can't be extracted
AIP recovery

Conflicts:
	storage_service/locations/api/resources.py
	storage_service/locations/models.py
	storage_service/storage_service/urls.py