Adding file_uploads to INSTALLED_APPS, but not TO_TEST
Adding file_uploads to INSTALLED_APPS, but not TO_TEST

This is because FileUpload model in file_uploads tests doesn't have
an app_label, which causes an error if it's not in INSTALLED_APPS.
Yet we don't want to run tests for it.

asendecka/djangae,kirberich/djangae,grzes/djangae,kirberich/djangae,asendecka/djangae,potatolondon/djangae,asendecka/djangae,grzes/djangae,potatolondon/djangae,grzes/djangae,kirberich/djangae