- update to 1.17.1
* New output format: `docbook5`
* `Text.Pandoc.Options`: Add `writerDocBook5` to `WriterOptions`
* Org writer:
+ Add :PROPERTIES: drawer support
This allows header attributes to be added to org documents in the form
of `:PROPERTIES:` drawers. All available attributes are stored as
key/value pairs. This reflects the way the org reader handles
`:PROPERTIES:` blocks.
+ Add drawer capability. For the implementation of the
Drawer element in the Org Writer, we make use of a generic Block
container with attributes. The presence of a `drawer` class defines
that the `Div` constructor is a drawer. The first class defines the
drawer name to use. The key-value list in the attributes defines
the keys to add inside the Drawer. Lastly, the list of Block elements
contains miscellaneous blocks elements to add inside of the Drawer.
+ Use `CUSTOM_ID` in properties. The `ID` property is
reserved for internal use by Org-mode and should not be used.
The `CUSTOM_ID` property is to be used instead, it is converted to the
`ID` property for certain export format.
* LaTeX writer:
+ Ignore `--incremental` unless output format is beamer.
+ Fix polyglossia to babel env mapping.
Allow for optional argument in square brackets.
+ Recognize `la-x-classic` as Classical Latin.
This allows one to access the hyphenation patterns in CTAN's
hyph-utf8.
+ Add missing languages from hyph-utf8.
+ Improve use of `\strut` with `\minipage` inside tables
. This improves spacing in multiline