Ignore venv
Ignore venv

.virtualenv should be ignored since it might still exist
from openslides 3.

tsiegleauq/OpenSlides,normanjaeckel/OpenSlides,tsiegleauq/OpenSlides,ostcar/OpenSlides,OpenSlides/OpenSlides,normanjaeckel/OpenSlides,ostcar/OpenSlides,OpenSlides/OpenSlides,normanjaeckel/OpenSlides,ostcar/OpenSlides,normanjaeckel/OpenSlides,tsiegleauq/OpenSlides