All syntax extensions from witiko/markdown backported to jgm/lunamark and merged

During the course of this year, I have been working on witiko/markdown as a part of a project funded by the Masaryk University in Brno, Czech Republic. The project is based on the jgm/lunamark codebase and as of today, all the bugfixes (17) and syntax extensions (19, 20) introduced in witiko/markdown were merged into jgm/lunamark. This effectively concludes the project.

Written on September 6, 2016