- version update to 1.9.17
* Added new `--pre-indent` option to control indentation of pre-formatted text
(Issue #505)
* Now link to CUPS library instead of embedding its HTTP code.
* Updated PostScript and PDF date/time information to use UTC (Issue #490)
* Fixed multiple conversions of UTF-8 HTML files from the GUI (Issue #496)
* Fixed a compile bug on Solaris (Issue #498)
* Fixed a markdown parsing bug (Issue #503)
* Fixed a relative URL handling bug (Issue #507)
* Fixed a crash bug with bad title images (Issue #510)
* Fixed some minor CodeQL warnings.