Changed
- The `include_internal` option of `store_variables_snapshot()`,
`variables_as_json()`, and `all_variables()` now controls whether
the `nav` variable is included in the output.
- The `authorized registration domains` Configuration directive now
applies to social login methods as well as username/password login.
- Increased accessibility of the `datatype: combobox` interface.
Fixed
- Problem with the exim4 mail configuration.
- Problem when `table prefix` in `db` was used.