Revert "Delete compiled file"

This reverts commit fc8c1a34e6ed30dc4a665549dbe4e94ab655b9dc.
Delete compiled file
Center the modal on the viewport

Change the position from `absolute` to `fixed` so that the overlay and the modal are centered on the viewport, rather than the page.  This ensures that the modal is always visible even on a longer page.
Merge pull request #24 from johndgiese/patch-1

Center the modal on the viewport
Version bump 2.2.1
Merge with upstream version 2.2.1
Version upgrade

- Upgrade changelog
- Drop missing-sources/django.es.po: Source is now ok upstream.