Added
- Support for using `md` as one of the `valid formats` in an
`attachment` when using `content` or `content file`.
- The `enable unoconv` Configuration directive (requires system
upgrade). This provides a faster method for converting DOCX files to
PDF.
Fixed
- When `raw: True` was enabled for an `attachment`, the file was not
included in e-mails sent from the user interface of the `attachment`
block.
- When `raw: True` was enabled for an `attachment`, and the
`DAFileCollection` was passed to `send_email()` or `send_sms()`, the
assembled file was not included.
- Fixed error from 1.3.17 relating to updating references.