Docker pipeline fails
The Docker pipeline fails, first due to an expired certificate, after switching to the recent emacs-reveal image due to code incompatibilities. Besides, the old image used reveal.js 3.x, and the test cases are based on 3.x.
I'm not sure how to proceed. In case somebody reads here: Should we update the test cases to generate (and expect) HTML code for reveal.js 4.x?
Also, the download of an old version of org-plus-contrib during make check
fails (not available any longer). What if we only tested against a recent version of Org mode (maybe with a recent Docker image emacs-reveal)? Anyone relying on older Org versions (we could test with debian-emacs-tex-org:v1.0 with Emacs 24.5.1 and Org mode 9.1)?