Release notes 19.0.2:

• several small chores/fixes

Release notes 19.0.1:

• fixed: correctly check if we have a group
• fixed: cron handling of stale groups
• fixed: don't remove the trash menu item for concept groups
• fixed: remove sort query element on other sorting menu items
• fixed: usage of wrong button type in group edit notification settings
• fixed: use correct headings in simplified boxes