Docassemble

Changed
- `complete_attribute` can refer to a list of attributes.
Fixed
- Markdown-to-HTML conversion was not being applied to the `pre` or
`submit` screen parts.
- `[TARGET ...]` was not working in `html`.
- Issues with the Training page.

Added
- The `custom datatypes to load` directive under `features`.
- The `set_variables()` function.
- The `process_objects` parameter for `set_session_variables`.
Changed
- Support for importing and exporting `datetime.date` and
`datetime.time` objects in the JSON representation of objects.
- `input type: area` text boxes are resizable in both dimensions.
Fixed
- Issue with `show if` and `labels above fields`.
- Issues with using SSL for external PostgreSQL and Redis connections.

Changed
- Upgraded CodeMirror.
Fixed
- Error with `overlay_pdf()` introduced in the last version.

Added
- The `permissions` Configuration directive.
- Ability of `admin` users to create API keys with limited permissions.
- The `multi` option of `overlay_pdf()`.
- The `/api/user_invite` API endpoint.
- The `api key` option of `default admin account`.
- The `allow forgot password` Configuration directive.
Changed
- Upgraded the `boto3` and `docxtpl` libraries.
- The Logs are now shown in a resizable `<textarea>`.
- Safer implementation of `exit link` and `exit url`.
- For safety reasons, `url_of('exit')` and similar URLs no longer
accept `next` parameters.
- The JavaScript for `CustomDataType` objects will only be inserted if
the interview uses the custom datatype.
Fixed
- URL of exit link was being set to `/interview` in some
circumstances.
- When server-side validation failed, the fields the user saw on the
next screen were not always populated with the user's answers.
- HTML typos in `<form>` elements.
- Problem converting DOCX to PDF when `attachment` filename contained
a space.
- Inaccurate exceptions were sometimes raised when `AttributeError` or
`IndexError` exceptions arise during assembly of a DOCX file.
- Fixes to Google geocoding for situations where the latitude and
longitude are undefined.

Added
- The `fax provider` Configuration directive.
- Option for faxing with Telnyx instead of ClickSend.
Changed
- The server name of a `DAFile` can be changed using `.set_attributes()`.
- NLTK data files are downloaded during the building of the Docker
image, so that the initial boot process does not require an internet
connection.

Fixed
- Error with the `.convert_to()` method of `DAFile`.
- Issue with display of modules in the Playground variables.