Use uwsgi in development

We should use uwsgi in development as well in order to use a defined environment (and simplify things like having Celery run in development).

added part::backend workflow::discussing labels

changed title from Use uesgi in development to Use uwsgi in development

created merge request !468 (merged) to address this issue

mentioned in merge request !468 (merged)

Somehow needed now since Redis/Celery have become non-optional.

removed workflow::discussing label

added workflow::confirmed label

closed with merge request !468 (merged)

mentioned in commit 730e6da9