Bugs fixed:
- Update moderator when moving an image from one gallery to another.
- #260404: Really fix image_gallery_access_node_access_records() now.
- #230123: Newest pgsql refuses to do automatic type conversions.
- Provide a message for uninitialized galleries when newly installed, rather than the incorrect 'default' setting of grant_all for 1 & 2.
- #221095: Fix caching in image_gallery_access_access().