a plot of recent events on the landing page. The latter is
only shown if settings.SHOW_RECENT_EVENTS_ON_HOME is True.
Setting it to false for now, since we are not in a run.

Localize EMFootprint start times to UTC.
Changed event creation time query to assume UTC.

Fixed bug where users are removed from admin managed groups if the group name is not in the shib session.

users (i.e., LV-EM MOU partners). Group names in the settings file,
as well as an external access tagname are used to control access.

- auth middleware to add/remove user to/from control room group based on IP.
- new model for operator signoffs (event, instrument unique_together)
- form to create, edit, and delete the operator signoff object
- eventlog messages for changes to signoff objects.
- OperatorSignoff serializer and LVAlert message
- alert operator of outstanding events on landing page.
- new labels and migration
- Added logic to create/remove H1OK, H1NO, etc. labels.
- Exposing the OperatorSignoff List resource through REST interface (GET only).